21888243

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6451}}^1$

素因数の和:6499

約数の個数: 24

約数和(自身を含む): 35227920

約数和(自身を除く): 13339677

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 6451, 19353, 58059, 83863, 187079, 251589, 561237, 754767, 1683711, 2432027, 7296081, 21888243]

約数ペア:

[(1, 21888243), (3, 7296081), (9, 2432027), (13, 1683711), (29, 754767), (39, 561237), (87, 251589), (117, 187079), (261, 83863), (377, 58059), (1131, 19353), (3393, 6451)]