20489996

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1213}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 37119264

約数和(自身を除く): 16629268

約数列:

[1, 2, 4, 41, 82, 103, 164, 206, 412, 1213, 2426, 4223, 4852, 8446, 16892, 49733, 99466, 124939, 198932, 249878, 499756, 5122499, 10244998, 20489996]

約数ペア:

[(1, 20489996), (2, 10244998), (4, 5122499), (41, 499756), (82, 249878), (103, 198932), (164, 124939), (206, 99466), (412, 49733), (1213, 16892), (2426, 8446), (4223, 4852)]