19949709

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10693491

約数列:

[1, 3, 13, 29, 31, 39, 87, 93, 377, 403, 569, 899, 1131, 1209, 1707, 2697, 7397, 11687, 16501, 17639, 22191, 35061, 49503, 52917, 214513, 229307, 511531, 643539, 687921, 1534593, 6649903, 19949709]

約数ペア:

[(1, 19949709), (3, 6649903), (13, 1534593), (29, 687921), (31, 643539), (39, 511531), (87, 229307), (93, 214513), (377, 52917), (403, 49503), (569, 35061), (899, 22191), (1131, 17639), (1209, 16501), (1707, 11687), (2697, 7397)]