19739343

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 30320640

約数和(自身を除く): 10581297

約数列:

[1, 3, 13, 29, 31, 39, 87, 93, 377, 403, 563, 899, 1131, 1209, 1689, 2697, 7319, 11687, 16327, 17453, 21957, 35061, 48981, 52359, 212251, 226889, 506137, 636753, 680667, 1518411, 6579781, 19739343]

約数ペア:

[(1, 19739343), (3, 6579781), (13, 1518411), (29, 680667), (31, 636753), (39, 506137), (87, 226889), (93, 212251), (377, 52359), (403, 48981), (563, 35061), (899, 21957), (1131, 17453), (1209, 16327), (1689, 11687), (2697, 7319)]