21213180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117851}}^1$

素因数の和:117866

約数の個数: 36

約数和(自身を含む): 64347192

約数和(自身を除く): 43134012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117851, 235702, 353553, 471404, 589255, 707106, 1060659, 1178510, 1414212, 1767765, 2121318, 2357020, 3535530, 4242636, 5303295, 7071060, 10606590, 21213180]

約数ペア:

[(1, 21213180), (2, 10606590), (3, 7071060), (4, 5303295), (5, 4242636), (6, 3535530), (9, 2357020), (10, 2121318), (12, 1767765), (15, 1414212), (18, 1178510), (20, 1060659), (30, 707106), (36, 589255), (45, 471404), (60, 353553), (90, 235702), (180, 117851)]