21400262

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{6481}}^1$

素因数の和:6623

約数の個数: 16

約数和(自身を含む): 34847232

約数和(自身を除く): 13446970

約数列:

[1, 2, 13, 26, 127, 254, 1651, 3302, 6481, 12962, 84253, 168506, 823087, 1646174, 10700131, 21400262]

約数ペア:

[(1, 21400262), (2, 10700131), (13, 1646174), (26, 823087), (127, 168506), (254, 84253), (1651, 12962), (3302, 6481)]