21376920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178141}}^1$

素因数の和:178155

約数の個数: 32

約数和(自身を含む): 64131120

約数和(自身を除く): 42754200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178141, 356282, 534423, 712564, 890705, 1068846, 1425128, 1781410, 2137692, 2672115, 3562820, 4275384, 5344230, 7125640, 10688460, 21376920]

約数ペア:

[(1, 21376920), (2, 10688460), (3, 7125640), (4, 5344230), (5, 4275384), (6, 3562820), (8, 2672115), (10, 2137692), (12, 1781410), (15, 1425128), (20, 1068846), (24, 890705), (30, 712564), (40, 534423), (60, 356282), (120, 178141)]