21239265

素因数分解:

$3^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{3697}}^1$

素因数の和:4088

約数の個数: 16

約数和(自身を含む): 34080768

約数和(自身を除く): 12841503

約数列:

[1, 3, 5, 15, 383, 1149, 1915, 3697, 5745, 11091, 18485, 55455, 1415951, 4247853, 7079755, 21239265]

約数ペア:

[(1, 21239265), (3, 7079755), (5, 4247853), (15, 1415951), (383, 55455), (1149, 18485), (1915, 11091), (3697, 5745)]