20984272

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42307}}^1$

素因数の和:42346

約数の個数: 20

約数和(自身を含む): 41969536

約数和(自身を除く): 20985264

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42307, 84614, 169228, 338456, 676912, 1311517, 2623034, 5246068, 10492136, 20984272]

約数ペア:

[(1, 20984272), (2, 10492136), (4, 5246068), (8, 2623034), (16, 1311517), (31, 676912), (62, 338456), (124, 169228), (248, 84614), (496, 42307)]