21168870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2683}}^1$

素因数の和:2956

約数の個数: 32

約数和(自身を含む): 51017472

約数和(自身を除く): 29848602

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 2683, 3945, 5366, 7890, 8049, 13415, 16098, 26830, 40245, 80490, 705629, 1411258, 2116887, 3528145, 4233774, 7056290, 10584435, 21168870]

約数ペア:

[(1, 21168870), (2, 10584435), (3, 7056290), (5, 4233774), (6, 3528145), (10, 2116887), (15, 1411258), (30, 705629), (263, 80490), (526, 40245), (789, 26830), (1315, 16098), (1578, 13415), (2630, 8049), (2683, 7890), (3945, 5366)]