21728940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6833}}^1$

素因数の和:6898

約数の個数: 48

約数和(自身を含む): 61998048

約数和(自身を除く): 40269108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6833, 13666, 20499, 27332, 34165, 40998, 68330, 81996, 102495, 136660, 204990, 362149, 409980, 724298, 1086447, 1448596, 1810745, 2172894, 3621490, 4345788, 5432235, 7242980, 10864470, 21728940]

約数ペア:

[(1, 21728940), (2, 10864470), (3, 7242980), (4, 5432235), (5, 4345788), (6, 3621490), (10, 2172894), (12, 1810745), (15, 1448596), (20, 1086447), (30, 724298), (53, 409980), (60, 362149), (106, 204990), (159, 136660), (212, 102495), (265, 81996), (318, 68330), (530, 40998), (636, 34165), (795, 27332), (1060, 20499), (1590, 13666), (3180, 6833)]