21481830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6451}}^1$

素因数の和:6501

約数の個数: 48

約数和(自身を含む): 57371184

約数和(自身を除く): 35889354

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 111, 185, 222, 333, 370, 555, 666, 1110, 1665, 3330, 6451, 12902, 19353, 32255, 38706, 58059, 64510, 96765, 116118, 193530, 238687, 290295, 477374, 580590, 716061, 1193435, 1432122, 2148183, 2386870, 3580305, 4296366, 7160610, 10740915, 21481830]

約数ペア:

[(1, 21481830), (2, 10740915), (3, 7160610), (5, 4296366), (6, 3580305), (9, 2386870), (10, 2148183), (15, 1432122), (18, 1193435), (30, 716061), (37, 580590), (45, 477374), (74, 290295), (90, 238687), (111, 193530), (185, 116118), (222, 96765), (333, 64510), (370, 58059), (555, 38706), (666, 32255), (1110, 19353), (1665, 12902), (3330, 6451)]