21946100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 52871616

約数和(自身を除く): 30925516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 220, 275, 281, 284, 355, 550, 562, 710, 781, 1100, 1124, 1405, 1420, 1562, 1775, 2810, 3091, 3124, 3550, 3905, 5620, 6182, 7025, 7100, 7810, 12364, 14050, 15455, 15620, 19525, 19951, 28100, 30910, 39050, 39902, 61820, 77275, 78100, 79804, 99755, 154550, 199510, 219461, 309100, 399020, 438922, 498775, 877844, 997550, 1097305, 1995100, 2194610, 4389220, 5486525, 10973050, 21946100]

約数ペア:

[(1, 21946100), (2, 10973050), (4, 5486525), (5, 4389220), (10, 2194610), (11, 1995100), (20, 1097305), (22, 997550), (25, 877844), (44, 498775), (50, 438922), (55, 399020), (71, 309100), (100, 219461), (110, 199510), (142, 154550), (220, 99755), (275, 79804), (281, 78100), (284, 77275), (355, 61820), (550, 39902), (562, 39050), (710, 30910), (781, 28100), (1100, 19951), (1124, 19525), (1405, 15620), (1420, 15455), (1562, 14050), (1775, 12364), (2810, 7810), (3091, 7100), (3124, 7025), (3550, 6182), (3905, 5620)]