21213870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8951}}^1$

素因数の和:9040

約数の個数: 32

約数和(自身を含む): 51563520

約数和(自身を除く): 30349650

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8951, 17902, 26853, 44755, 53706, 89510, 134265, 268530, 707129, 1414258, 2121387, 3535645, 4242774, 7071290, 10606935, 21213870]

約数ペア:

[(1, 21213870), (2, 10606935), (3, 7071290), (5, 4242774), (6, 3535645), (10, 2121387), (15, 1414258), (30, 707129), (79, 268530), (158, 134265), (237, 89510), (395, 53706), (474, 44755), (790, 26853), (1185, 17902), (2370, 8951)]