20925105

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 34781184

約数和(自身を除く): 13856079

約数列:

[1, 3, 5, 15, 47, 67, 141, 201, 235, 335, 443, 705, 1005, 1329, 2215, 3149, 6645, 9447, 15745, 20821, 29681, 47235, 62463, 89043, 104105, 148405, 312315, 445215, 1395007, 4185021, 6975035, 20925105]

約数ペア:

[(1, 20925105), (3, 6975035), (5, 4185021), (15, 1395007), (47, 445215), (67, 312315), (141, 148405), (201, 104105), (235, 89043), (335, 62463), (443, 47235), (705, 29681), (1005, 20821), (1329, 15745), (2215, 9447), (3149, 6645)]