21018142

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:760

約数の個数: 24

約数和(自身を含む): 34097976

約数和(自身を除く): 13079834

約数列:

[1, 2, 19, 38, 43, 86, 361, 677, 722, 817, 1354, 1634, 12863, 15523, 25726, 29111, 31046, 58222, 244397, 488794, 553109, 1106218, 10509071, 21018142]

約数ペア:

[(1, 21018142), (2, 10509071), (19, 1106218), (38, 553109), (43, 488794), (86, 244397), (361, 58222), (677, 31046), (722, 29111), (817, 25726), (1354, 15523), (1634, 12863)]