20539818

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{3251}}^1$

素因数の和:3281

約数の個数: 48

約数和(自身を含む): 49716576

約数和(自身を除く): 29176758

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 486, 702, 1053, 2106, 3159, 3251, 6318, 6502, 9753, 19506, 29259, 42263, 58518, 84526, 87777, 126789, 175554, 253578, 263331, 380367, 526662, 760734, 789993, 1141101, 1579986, 2282202, 3423303, 6846606, 10269909, 20539818]

約数ペア:

[(1, 20539818), (2, 10269909), (3, 6846606), (6, 3423303), (9, 2282202), (13, 1579986), (18, 1141101), (26, 789993), (27, 760734), (39, 526662), (54, 380367), (78, 263331), (81, 253578), (117, 175554), (162, 126789), (234, 87777), (243, 84526), (351, 58518), (486, 42263), (702, 29259), (1053, 19506), (2106, 9753), (3159, 6502), (3251, 6318)]