20404148

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1571}}^1$

素因数の和:1783

約数の個数: 24

約数和(自身を含む): 38029824

約数和(自身を除く): 17625676

約数列:

[1, 2, 4, 17, 34, 68, 191, 382, 764, 1571, 3142, 3247, 6284, 6494, 12988, 26707, 53414, 106828, 300061, 600122, 1200244, 5101037, 10202074, 20404148]

約数ペア:

[(1, 20404148), (2, 10202074), (4, 5101037), (17, 1200244), (34, 600122), (68, 300061), (191, 106828), (382, 53414), (764, 26707), (1571, 12988), (3142, 6494), (3247, 6284)]