20457998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^2\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 24

約数和(自身を含む): 34133400

約数和(自身を除く): 13675402

約数列:

[1, 2, 11, 22, 79, 149, 158, 298, 869, 1639, 1738, 3278, 6241, 11771, 12482, 23542, 68651, 129481, 137302, 258962, 929909, 1859818, 10228999, 20457998]

約数ペア:

[(1, 20457998), (2, 10228999), (11, 1859818), (22, 929909), (79, 258962), (149, 137302), (158, 129481), (298, 68651), (869, 23542), (1639, 12482), (1738, 11771), (3278, 6241)]