21430672

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43207}}^1$

素因数の和:43246

約数の個数: 20

約数和(自身を含む): 42862336

約数和(自身を除く): 21431664

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43207, 86414, 172828, 345656, 691312, 1339417, 2678834, 5357668, 10715336, 21430672]

約数ペア:

[(1, 21430672), (2, 10715336), (4, 5357668), (8, 2678834), (16, 1339417), (31, 691312), (62, 345656), (124, 172828), (248, 86414), (496, 43207)]