21360530

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1009}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 40359600

約数和(自身を除く): 18999070

約数列:

[1, 2, 5, 10, 29, 58, 73, 145, 146, 290, 365, 730, 1009, 2018, 2117, 4234, 5045, 10090, 10585, 21170, 29261, 58522, 73657, 146305, 147314, 292610, 368285, 736570, 2136053, 4272106, 10680265, 21360530]

約数ペア:

[(1, 21360530), (2, 10680265), (5, 4272106), (10, 2136053), (29, 736570), (58, 368285), (73, 292610), (145, 147314), (146, 146305), (290, 73657), (365, 58522), (730, 29261), (1009, 21170), (2018, 10585), (2117, 10090), (4234, 5045)]