21975415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5189}}^1$

素因数の和:5223

約数の個数: 24

約数和(自身を含む): 33132960

約数和(自身を除く): 11157545

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 5189, 25945, 36323, 57079, 181615, 285395, 399553, 627869, 1997765, 3139345, 4395083, 21975415]

約数ペア:

[(1, 21975415), (5, 4395083), (7, 3139345), (11, 1997765), (35, 627869), (55, 399553), (77, 285395), (121, 181615), (385, 57079), (605, 36323), (847, 25945), (4235, 5189)]