21801153

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 33214464

約数和(自身を除く): 11413311

約数列:

[1, 3, 11, 31, 33, 93, 101, 211, 303, 341, 633, 1023, 1111, 2321, 3131, 3333, 6541, 6963, 9393, 19623, 21311, 34441, 63933, 71951, 103323, 215853, 234421, 660641, 703263, 1981923, 7267051, 21801153]

約数ペア:

[(1, 21801153), (3, 7267051), (11, 1981923), (31, 703263), (33, 660641), (93, 234421), (101, 215853), (211, 103323), (303, 71951), (341, 63933), (633, 34441), (1023, 21311), (1111, 19623), (2321, 9393), (3131, 6963), (3333, 6541)]