21753720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60427}}^1$

素因数の和:60444

約数の個数: 48

約数和(自身を含む): 70700760

約数和(自身を除く): 48947040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60427, 120854, 181281, 241708, 302135, 362562, 483416, 543843, 604270, 725124, 906405, 1087686, 1208540, 1450248, 1812810, 2175372, 2417080, 2719215, 3625620, 4350744, 5438430, 7251240, 10876860, 21753720]

約数ペア:

[(1, 21753720), (2, 10876860), (3, 7251240), (4, 5438430), (5, 4350744), (6, 3625620), (8, 2719215), (9, 2417080), (10, 2175372), (12, 1812810), (15, 1450248), (18, 1208540), (20, 1087686), (24, 906405), (30, 725124), (36, 604270), (40, 543843), (45, 483416), (60, 362562), (72, 302135), (90, 241708), (120, 181281), (180, 120854), (360, 60427)]