21297720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177481}}^1$

素因数の和:177495

約数の個数: 32

約数和(自身を含む): 63893520

約数和(自身を除く): 42595800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177481, 354962, 532443, 709924, 887405, 1064886, 1419848, 1774810, 2129772, 2662215, 3549620, 4259544, 5324430, 7099240, 10648860, 21297720]

約数ペア:

[(1, 21297720), (2, 10648860), (3, 7099240), (4, 5324430), (5, 4259544), (6, 3549620), (8, 2662215), (10, 2129772), (12, 1774810), (15, 1419848), (20, 1064886), (24, 887405), (30, 709924), (40, 532443), (60, 354962), (120, 177481)]