21002685

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127289}}^1$

素因数の和:127308

約数の個数: 16

約数和(自身を含む): 36659520

約数和(自身を除く): 15656835

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127289, 381867, 636445, 1400179, 1909335, 4200537, 7000895, 21002685]

約数ペア:

[(1, 21002685), (3, 7000895), (5, 4200537), (11, 1909335), (15, 1400179), (33, 636445), (55, 381867), (165, 127289)]