17971239

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 28433664

約数和(自身を除く): 10462425

約数列:

[1, 3, 11, 13, 33, 39, 143, 163, 257, 429, 489, 771, 1793, 2119, 2827, 3341, 5379, 6357, 8481, 10023, 23309, 36751, 41891, 69927, 110253, 125673, 460801, 544583, 1382403, 1633749, 5990413, 17971239]

約数ペア:

[(1, 17971239), (3, 5990413), (11, 1633749), (13, 1382403), (33, 544583), (39, 460801), (143, 125673), (163, 110253), (257, 69927), (429, 41891), (489, 36751), (771, 23309), (1793, 10023), (2119, 8481), (2827, 6357), (3341, 5379)]