21513720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{179281}}^1$

素因数の和:179295

約数の個数: 32

約数和(自身を含む): 64541520

約数和(自身を除く): 43027800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 179281, 358562, 537843, 717124, 896405, 1075686, 1434248, 1792810, 2151372, 2689215, 3585620, 4302744, 5378430, 7171240, 10756860, 21513720]

約数ペア:

[(1, 21513720), (2, 10756860), (3, 7171240), (4, 5378430), (5, 4302744), (6, 3585620), (8, 2689215), (10, 2151372), (12, 1792810), (15, 1434248), (20, 1075686), (24, 896405), (30, 717124), (40, 537843), (60, 358562), (120, 179281)]