18651152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89669}}^1$

素因数の和:89690

約数の個数: 20

約数和(自身を含む): 38916780

約数和(自身を除く): 20265628

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89669, 179338, 358676, 717352, 1165697, 1434704, 2331394, 4662788, 9325576, 18651152]

約数ペア:

[(1, 18651152), (2, 9325576), (4, 4662788), (8, 2331394), (13, 1434704), (16, 1165697), (26, 717352), (52, 358676), (104, 179338), (208, 89669)]