21350580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{683}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 59984064

約数和(自身を除く): 38633484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 521, 683, 1042, 1366, 1563, 2049, 2084, 2605, 2732, 3126, 3415, 4098, 5210, 6252, 6830, 7815, 8196, 10245, 10420, 13660, 15630, 20490, 31260, 40980, 355843, 711686, 1067529, 1423372, 1779215, 2135058, 3558430, 4270116, 5337645, 7116860, 10675290, 21350580]

約数ペア:

[(1, 21350580), (2, 10675290), (3, 7116860), (4, 5337645), (5, 4270116), (6, 3558430), (10, 2135058), (12, 1779215), (15, 1423372), (20, 1067529), (30, 711686), (60, 355843), (521, 40980), (683, 31260), (1042, 20490), (1366, 15630), (1563, 13660), (2049, 10420), (2084, 10245), (2605, 8196), (2732, 7815), (3126, 6830), (3415, 6252), (4098, 5210)]