20961950

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{5743}}^1$

素因数の和:5828

約数の個数: 24

約数和(自身を含む): 39530208

約数和(自身を除く): 18568258

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 1825, 3650, 5743, 11486, 28715, 57430, 143575, 287150, 419239, 838478, 2096195, 4192390, 10480975, 20961950]

約数ペア:

[(1, 20961950), (2, 10480975), (5, 4192390), (10, 2096195), (25, 838478), (50, 419239), (73, 287150), (146, 143575), (365, 57430), (730, 28715), (1825, 11486), (3650, 5743)]