20682753

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 35239680

約数和(自身を除く): 14556927

約数列:

[1, 3, 7, 13, 21, 39, 49, 79, 91, 137, 147, 237, 273, 411, 553, 637, 959, 1027, 1659, 1781, 1911, 2877, 3081, 3871, 5343, 6713, 7189, 10823, 11613, 12467, 20139, 21567, 32469, 37401, 50323, 75761, 87269, 140699, 150969, 227283, 261807, 422097, 530327, 984893, 1590981, 2954679, 6894251, 20682753]

約数ペア:

[(1, 20682753), (3, 6894251), (7, 2954679), (13, 1590981), (21, 984893), (39, 530327), (49, 422097), (79, 261807), (91, 227283), (137, 150969), (147, 140699), (237, 87269), (273, 75761), (411, 50323), (553, 37401), (637, 32469), (959, 21567), (1027, 20139), (1659, 12467), (1781, 11613), (1911, 10823), (2877, 7189), (3081, 6713), (3871, 5343)]