21913920

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{1087}}^1$

素因数の和:1117

約数の個数: 168

約数和(自身を含む): 86221824

約数和(自身を除く): 64307904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1087, 1120, 1260, 1344, 1440, 1680, 2016, 2174, 2240, 2520, 2880, 3261, 3360, 4032, 4348, 5040, 5435, 6522, 6720, 7609, 8696, 9783, 10080, 10870, 13044, 15218, 16305, 17392, 19566, 20160, 21740, 22827, 26088, 30436, 32610, 34784, 38045, 39132, 43480, 45654, 48915, 52176, 60872, 65220, 68481, 69568, 76090, 78264, 86960, 91308, 97830, 104352, 114135, 121744, 130440, 136962, 152180, 156528, 173920, 182616, 195660, 208704, 228270, 243488, 260880, 273924, 304360, 313056, 342405, 347840, 365232, 391320, 456540, 486976, 521760, 547848, 608720, 626112, 684810, 730464, 782640, 913080, 1043520, 1095696, 1217440, 1369620, 1460928, 1565280, 1826160, 2191392, 2434880, 2739240, 3130560, 3652320, 4382784, 5478480, 7304640, 10956960, 21913920]

約数ペア:

[(1, 21913920), (2, 10956960), (3, 7304640), (4, 5478480), (5, 4382784), (6, 3652320), (7, 3130560), (8, 2739240), (9, 2434880), (10, 2191392), (12, 1826160), (14, 1565280), (15, 1460928), (16, 1369620), (18, 1217440), (20, 1095696), (21, 1043520), (24, 913080), (28, 782640), (30, 730464), (32, 684810), (35, 626112), (36, 608720), (40, 547848), (42, 521760), (45, 486976), (48, 456540), (56, 391320), (60, 365232), (63, 347840), (64, 342405), (70, 313056), (72, 304360), (80, 273924), (84, 260880), (90, 243488), (96, 228270), (105, 208704), (112, 195660), (120, 182616), (126, 173920), (140, 156528), (144, 152180), (160, 136962), (168, 130440), (180, 121744), (192, 114135), (210, 104352), (224, 97830), (240, 91308), (252, 86960), (280, 78264), (288, 76090), (315, 69568), (320, 68481), (336, 65220), (360, 60872), (420, 52176), (448, 48915), (480, 45654), (504, 43480), (560, 39132), (576, 38045), (630, 34784), (672, 32610), (720, 30436), (840, 26088), (960, 22827), (1008, 21740), (1087, 20160), (1120, 19566), (1260, 17392), (1344, 16305), (1440, 15218), (1680, 13044), (2016, 10870), (2174, 10080), (2240, 9783), (2520, 8696), (2880, 7609), (3261, 6720), (3360, 6522), (4032, 5435), (4348, 5040)]