21306294

素因数分解:

$2^1\times 3^3\times {\mathrm{571}}^1\times {\mathrm{691}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 47498880

約数和(自身を除く): 26192586

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 571, 691, 1142, 1382, 1713, 2073, 3426, 4146, 5139, 6219, 10278, 12438, 15417, 18657, 30834, 37314, 394561, 789122, 1183683, 2367366, 3551049, 7102098, 10653147, 21306294]

約数ペア:

[(1, 21306294), (2, 10653147), (3, 7102098), (6, 3551049), (9, 2367366), (18, 1183683), (27, 789122), (54, 394561), (571, 37314), (691, 30834), (1142, 18657), (1382, 15417), (1713, 12438), (2073, 10278), (3426, 6219), (4146, 5139)]