21264464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102233}}^1$

素因数の和:102254

約数の個数: 20

約数和(自身を含む): 44369556

約数和(自身を除く): 23105092

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102233, 204466, 408932, 817864, 1329029, 1635728, 2658058, 5316116, 10632232, 21264464]

約数ペア:

[(1, 21264464), (2, 10632232), (4, 5316116), (8, 2658058), (13, 1635728), (16, 1329029), (26, 817864), (52, 408932), (104, 204466), (208, 102233)]