1991621708

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{5594443}}^1$

素因数の和:5594536

約数の個数: 12

約数和(自身を含む): 3524499720

約数和(自身を除く): 1532878012

約数列:

[1, 2, 4, 89, 178, 356, 5594443, 11188886, 22377772, 497905427, 995810854, 1991621708]

約数ペア:

[(1, 1991621708), (2, 995810854), (4, 497905427), (89, 22377772), (178, 11188886), (356, 5594443)]