21720108

素因数分解:

$2^2\times 3^1\times {\mathrm{271}}^1\times {\mathrm{6679}}^1$

素因数の和:6957

約数の個数: 24

約数和(自身を含む): 50874880

約数和(自身を除く): 29154772

約数列:

[1, 2, 3, 4, 6, 12, 271, 542, 813, 1084, 1626, 3252, 6679, 13358, 20037, 26716, 40074, 80148, 1810009, 3620018, 5430027, 7240036, 10860054, 21720108]

約数ペア:

[(1, 21720108), (2, 10860054), (3, 7240036), (4, 5430027), (6, 3620018), (12, 1810009), (271, 80148), (542, 40074), (813, 26716), (1084, 20037), (1626, 13358), (3252, 6679)]