21150800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:82

約数の個数: 180

約数和(自身を含む): 61350240

約数和(自身を除く): 40199440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 23, 25, 38, 40, 44, 46, 50, 55, 76, 80, 88, 92, 95, 100, 110, 115, 121, 152, 176, 184, 190, 200, 209, 220, 230, 242, 253, 275, 304, 368, 380, 400, 418, 437, 440, 460, 475, 484, 506, 550, 575, 605, 760, 836, 874, 880, 920, 950, 968, 1012, 1045, 1100, 1150, 1210, 1265, 1520, 1672, 1748, 1840, 1900, 1936, 2024, 2090, 2185, 2200, 2299, 2300, 2420, 2530, 2783, 3025, 3344, 3496, 3800, 4048, 4180, 4370, 4400, 4598, 4600, 4807, 4840, 5060, 5225, 5566, 6050, 6325, 6992, 7600, 8360, 8740, 9196, 9200, 9614, 9680, 10120, 10450, 10925, 11132, 11495, 12100, 12650, 13915, 16720, 17480, 18392, 19228, 20240, 20900, 21850, 22264, 22990, 24035, 24200, 25300, 27830, 34960, 36784, 38456, 41800, 43700, 44528, 45980, 48070, 48400, 50600, 52877, 55660, 57475, 69575, 76912, 83600, 87400, 91960, 96140, 101200, 105754, 111320, 114950, 120175, 139150, 174800, 183920, 192280, 211508, 222640, 229900, 240350, 264385, 278300, 384560, 423016, 459800, 480700, 528770, 556600, 846032, 919600, 961400, 1057540, 1113200, 1321925, 1922800, 2115080, 2643850, 4230160, 5287700, 10575400, 21150800]

約数ペア:

[(1, 21150800), (2, 10575400), (4, 5287700), (5, 4230160), (8, 2643850), (10, 2115080), (11, 1922800), (16, 1321925), (19, 1113200), (20, 1057540), (22, 961400), (23, 919600), (25, 846032), (38, 556600), (40, 528770), (44, 480700), (46, 459800), (50, 423016), (55, 384560), (76, 278300), (80, 264385), (88, 240350), (92, 229900), (95, 222640), (100, 211508), (110, 192280), (115, 183920), (121, 174800), (152, 139150), (176, 120175), (184, 114950), (190, 111320), (200, 105754), (209, 101200), (220, 96140), (230, 91960), (242, 87400), (253, 83600), (275, 76912), (304, 69575), (368, 57475), (380, 55660), (400, 52877), (418, 50600), (437, 48400), (440, 48070), (460, 45980), (475, 44528), (484, 43700), (506, 41800), (550, 38456), (575, 36784), (605, 34960), (760, 27830), (836, 25300), (874, 24200), (880, 24035), (920, 22990), (950, 22264), (968, 21850), (1012, 20900), (1045, 20240), (1100, 19228), (1150, 18392), (1210, 17480), (1265, 16720), (1520, 13915), (1672, 12650), (1748, 12100), (1840, 11495), (1900, 11132), (1936, 10925), (2024, 10450), (2090, 10120), (2185, 9680), (2200, 9614), (2299, 9200), (2300, 9196), (2420, 8740), (2530, 8360), (2783, 7600), (3025, 6992), (3344, 6325), (3496, 6050), (3800, 5566), (4048, 5225), (4180, 5060), (4370, 4840), (4400, 4807), (4598, 4600)]