21946760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1662

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 33694840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1609, 1705, 2728, 3218, 3410, 6436, 6820, 8045, 12872, 13640, 16090, 17699, 32180, 35398, 49879, 64360, 70796, 88495, 99758, 141592, 176990, 199516, 249395, 353980, 399032, 498790, 548669, 707960, 997580, 1097338, 1995160, 2194676, 2743345, 4389352, 5486690, 10973380, 21946760]

約数ペア:

[(1, 21946760), (2, 10973380), (4, 5486690), (5, 4389352), (8, 2743345), (10, 2194676), (11, 1995160), (20, 1097338), (22, 997580), (31, 707960), (40, 548669), (44, 498790), (55, 399032), (62, 353980), (88, 249395), (110, 199516), (124, 176990), (155, 141592), (220, 99758), (248, 88495), (310, 70796), (341, 64360), (440, 49879), (620, 35398), (682, 32180), (1240, 17699), (1364, 16090), (1609, 13640), (1705, 12872), (2728, 8045), (3218, 6820), (3410, 6436)]