19987496932

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{958541}}^1$

素因数の和:958959

約数の個数: 24

約数和(自身を含む): 37762720632

約数和(自身を除く): 17775223700

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 1604, 5213, 10426, 20852, 958541, 1917082, 3834164, 12461033, 24922066, 49844132, 384374941, 768749882, 1537499764, 4996874233, 9993748466, 19987496932]

約数ペア:

[(1, 19987496932), (2, 9993748466), (4, 4996874233), (13, 1537499764), (26, 768749882), (52, 384374941), (401, 49844132), (802, 24922066), (1604, 12461033), (5213, 3834164), (10426, 1917082), (20852, 958541)]