20218107

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2443

約数の個数: 32

約数和(自身を含む): 34263040

約数和(自身を除く): 14044933

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2389, 2821, 7167, 8463, 16723, 31057, 50169, 74059, 93171, 217399, 222177, 518413, 652197, 962767, 1555239, 2888301, 6739369, 20218107]

約数ペア:

[(1, 20218107), (3, 6739369), (7, 2888301), (13, 1555239), (21, 962767), (31, 652197), (39, 518413), (91, 222177), (93, 217399), (217, 93171), (273, 74059), (403, 50169), (651, 31057), (1209, 16723), (2389, 8463), (2821, 7167)]