19942858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13764662

約数列:

[1, 2, 13, 26, 31, 62, 109, 218, 227, 403, 454, 806, 1417, 2834, 2951, 3379, 5902, 6758, 7037, 14074, 24743, 43927, 49486, 87854, 91481, 182962, 321659, 643318, 767033, 1534066, 9971429, 19942858]

約数ペア:

[(1, 19942858), (2, 9971429), (13, 1534066), (26, 767033), (31, 643318), (62, 321659), (109, 182962), (218, 91481), (227, 87854), (403, 49486), (454, 43927), (806, 24743), (1417, 14074), (2834, 7037), (2951, 6758), (3379, 5902)]