21296093

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 6793507

約数列:

[1, 7, 13, 19, 91, 109, 113, 133, 247, 763, 791, 1417, 1469, 1729, 2071, 2147, 9919, 10283, 12317, 14497, 15029, 26923, 27911, 86219, 160121, 188461, 195377, 234023, 1120847, 1638161, 3042299, 21296093]

約数ペア:

[(1, 21296093), (7, 3042299), (13, 1638161), (19, 1120847), (91, 234023), (109, 195377), (113, 188461), (133, 160121), (247, 86219), (763, 27911), (791, 26923), (1417, 15029), (1469, 14497), (1729, 12317), (2071, 10283), (2147, 9919)]