21518035

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5081}}^1$

素因数の和:5115

約数の個数: 24

約数和(自身を含む): 32443488

約数和(自身を除く): 10925453

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 5081, 25405, 35567, 55891, 177835, 279455, 391237, 614801, 1956185, 3074005, 4303607, 21518035]

約数ペア:

[(1, 21518035), (5, 4303607), (7, 3074005), (11, 1956185), (35, 614801), (55, 391237), (77, 279455), (121, 177835), (385, 55891), (605, 35567), (847, 25405), (4235, 5081)]