21102870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4721}}^1$

素因数の和:4880

約数の個数: 32

約数和(自身を含む): 50997600

約数和(自身を除く): 29894730

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 149, 298, 447, 745, 894, 1490, 2235, 4470, 4721, 9442, 14163, 23605, 28326, 47210, 70815, 141630, 703429, 1406858, 2110287, 3517145, 4220574, 7034290, 10551435, 21102870]

約数ペア:

[(1, 21102870), (2, 10551435), (3, 7034290), (5, 4220574), (6, 3517145), (10, 2110287), (15, 1406858), (30, 703429), (149, 141630), (298, 70815), (447, 47210), (745, 28326), (894, 23605), (1490, 14163), (2235, 9442), (4470, 4721)]