21148980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352483}}^1$

素因数の和:352495

約数の個数: 24

約数和(自身を含む): 59217312

約数和(自身を除く): 38068332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352483, 704966, 1057449, 1409932, 1762415, 2114898, 3524830, 4229796, 5287245, 7049660, 10574490, 21148980]

約数ペア:

[(1, 21148980), (2, 10574490), (3, 7049660), (4, 5287245), (5, 4229796), (6, 3524830), (10, 2114898), (12, 1762415), (15, 1409932), (20, 1057449), (30, 704966), (60, 352483)]