21557400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 192

約数和(自身を含む): 73804800

約数和(自身を除く): 52247400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 25, 30, 31, 38, 40, 50, 57, 60, 61, 62, 75, 76, 93, 95, 100, 114, 120, 122, 124, 150, 152, 155, 183, 186, 190, 200, 228, 244, 248, 285, 300, 305, 310, 366, 372, 380, 456, 465, 475, 488, 570, 589, 600, 610, 620, 732, 744, 760, 775, 915, 930, 950, 1140, 1159, 1178, 1220, 1240, 1425, 1464, 1525, 1550, 1767, 1830, 1860, 1891, 1900, 2280, 2318, 2325, 2356, 2440, 2850, 2945, 3050, 3100, 3477, 3534, 3660, 3720, 3782, 3800, 4575, 4636, 4650, 4712, 5673, 5700, 5795, 5890, 6100, 6200, 6954, 7068, 7320, 7564, 8835, 9150, 9272, 9300, 9455, 11346, 11400, 11590, 11780, 12200, 13908, 14136, 14725, 15128, 17385, 17670, 18300, 18600, 18910, 22692, 23180, 23560, 27816, 28365, 28975, 29450, 34770, 35340, 35929, 36600, 37820, 44175, 45384, 46360, 47275, 56730, 57950, 58900, 69540, 70680, 71858, 75640, 86925, 88350, 94550, 107787, 113460, 115900, 117800, 139080, 141825, 143716, 173850, 176700, 179645, 189100, 215574, 226920, 231800, 283650, 287432, 347700, 353400, 359290, 378200, 431148, 538935, 567300, 695400, 718580, 862296, 898225, 1077870, 1134600, 1437160, 1796450, 2155740, 2694675, 3592900, 4311480, 5389350, 7185800, 10778700, 21557400]

約数ペア:

[(1, 21557400), (2, 10778700), (3, 7185800), (4, 5389350), (5, 4311480), (6, 3592900), (8, 2694675), (10, 2155740), (12, 1796450), (15, 1437160), (19, 1134600), (20, 1077870), (24, 898225), (25, 862296), (30, 718580), (31, 695400), (38, 567300), (40, 538935), (50, 431148), (57, 378200), (60, 359290), (61, 353400), (62, 347700), (75, 287432), (76, 283650), (93, 231800), (95, 226920), (100, 215574), (114, 189100), (120, 179645), (122, 176700), (124, 173850), (150, 143716), (152, 141825), (155, 139080), (183, 117800), (186, 115900), (190, 113460), (200, 107787), (228, 94550), (244, 88350), (248, 86925), (285, 75640), (300, 71858), (305, 70680), (310, 69540), (366, 58900), (372, 57950), (380, 56730), (456, 47275), (465, 46360), (475, 45384), (488, 44175), (570, 37820), (589, 36600), (600, 35929), (610, 35340), (620, 34770), (732, 29450), (744, 28975), (760, 28365), (775, 27816), (915, 23560), (930, 23180), (950, 22692), (1140, 18910), (1159, 18600), (1178, 18300), (1220, 17670), (1240, 17385), (1425, 15128), (1464, 14725), (1525, 14136), (1550, 13908), (1767, 12200), (1830, 11780), (1860, 11590), (1891, 11400), (1900, 11346), (2280, 9455), (2318, 9300), (2325, 9272), (2356, 9150), (2440, 8835), (2850, 7564), (2945, 7320), (3050, 7068), (3100, 6954), (3477, 6200), (3534, 6100), (3660, 5890), (3720, 5795), (3782, 5700), (3800, 5673), (4575, 4712), (4636, 4650)]