21861333

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{1597}}^1$

素因数の和:1635

約数の個数: 30

約数和(自身を含む): 35384514

約数和(自身を除く): 13523181

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 351, 507, 1053, 1521, 1597, 4563, 4791, 13689, 14373, 20761, 43119, 62283, 129357, 186849, 269893, 560547, 809679, 1681641, 2429037, 7287111, 21861333]

約数ペア:

[(1, 21861333), (3, 7287111), (9, 2429037), (13, 1681641), (27, 809679), (39, 560547), (81, 269893), (117, 186849), (169, 129357), (351, 62283), (507, 43119), (1053, 20761), (1521, 14373), (1597, 13689), (4563, 4791)]