19142991

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2689}}^1$

素因数の和:2815

約数の個数: 24

約数和(自身を含む): 31892640

約数和(自身を除く): 12749649

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 2689, 7119, 8067, 18823, 24201, 56469, 169407, 303857, 911571, 2126999, 2734713, 6380997, 19142991]

約数ペア:

[(1, 19142991), (3, 6380997), (7, 2734713), (9, 2126999), (21, 911571), (63, 303857), (113, 169407), (339, 56469), (791, 24201), (1017, 18823), (2373, 8067), (2689, 7119)]