21508980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358483}}^1$

素因数の和:358495

約数の個数: 24

約数和(自身を含む): 60225312

約数和(自身を除く): 38716332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358483, 716966, 1075449, 1433932, 1792415, 2150898, 3584830, 4301796, 5377245, 7169660, 10754490, 21508980]

約数ペア:

[(1, 21508980), (2, 10754490), (3, 7169660), (4, 5377245), (5, 4301796), (6, 3584830), (10, 2150898), (12, 1792415), (15, 1433932), (20, 1075449), (30, 716966), (60, 358483)]