21992295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3889}}^1$

素因数の和:3939

約数の個数: 32

約数和(自身を含む): 39211200

約数和(自身を除く): 17218905

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 3889, 5655, 11667, 19445, 50557, 58335, 112781, 151671, 252785, 338343, 563905, 758355, 1466153, 1691715, 4398459, 7330765, 21992295]

約数ペア:

[(1, 21992295), (3, 7330765), (5, 4398459), (13, 1691715), (15, 1466153), (29, 758355), (39, 563905), (65, 338343), (87, 252785), (145, 151671), (195, 112781), (377, 58335), (435, 50557), (1131, 19445), (1885, 11667), (3889, 5655)]