21563633

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 7176463

約数列:

[1, 7, 13, 17, 53, 91, 119, 221, 263, 371, 689, 901, 1547, 1841, 3419, 4471, 4823, 6307, 11713, 13939, 23933, 31297, 58123, 81991, 97573, 181207, 236963, 406861, 1268449, 1658741, 3080519, 21563633]

約数ペア:

[(1, 21563633), (7, 3080519), (13, 1658741), (17, 1268449), (53, 406861), (91, 236963), (119, 181207), (221, 97573), (263, 81991), (371, 58123), (689, 31297), (901, 23933), (1547, 13939), (1841, 11713), (3419, 6307), (4471, 4823)]