21678548

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2213}}^1$

素因数の和:2327

約数の個数: 24

約数和(自身を含む): 39674880

約数和(自身を除く): 17996332

約数列:

[1, 2, 4, 31, 62, 79, 124, 158, 316, 2213, 2449, 4426, 4898, 8852, 9796, 68603, 137206, 174827, 274412, 349654, 699308, 5419637, 10839274, 21678548]

約数ペア:

[(1, 21678548), (2, 10839274), (4, 5419637), (31, 699308), (62, 349654), (79, 274412), (124, 174827), (158, 137206), (316, 68603), (2213, 9796), (2449, 8852), (4426, 4898)]