21046978

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{6829}}^1$

素因数の和:6921

約数の個数: 16

約数和(自身を含む): 33439680

約数和(自身を除く): 12392702

約数列:

[1, 2, 23, 46, 67, 134, 1541, 3082, 6829, 13658, 157067, 314134, 457543, 915086, 10523489, 21046978]

約数ペア:

[(1, 21046978), (2, 10523489), (23, 915086), (46, 457543), (67, 314134), (134, 157067), (1541, 13658), (3082, 6829)]