21946197

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4231}}^1$

素因数の和:4273

約数の個数: 32

約数和(自身を含む): 37918720

約数和(自身を除く): 15972523

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 4231, 5187, 12693, 29617, 55003, 80389, 88851, 165009, 241167, 385021, 562723, 1045057, 1155063, 1688169, 3135171, 7315399, 21946197]

約数ペア:

[(1, 21946197), (3, 7315399), (7, 3135171), (13, 1688169), (19, 1155063), (21, 1045057), (39, 562723), (57, 385021), (91, 241167), (133, 165009), (247, 88851), (273, 80389), (399, 55003), (741, 29617), (1729, 12693), (4231, 5187)]