19491095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8087785

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 403, 527, 569, 1105, 2015, 2635, 2845, 6851, 7397, 9673, 17639, 34255, 36985, 48365, 88195, 125749, 229307, 299863, 628745, 1146535, 1499315, 3898219, 19491095]

約数ペア:

[(1, 19491095), (5, 3898219), (13, 1499315), (17, 1146535), (31, 628745), (65, 299863), (85, 229307), (155, 125749), (221, 88195), (403, 48365), (527, 36985), (569, 34255), (1105, 17639), (2015, 9673), (2635, 7397), (2845, 6851)]