20786454

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 48847344

約数和(自身を除く): 28060890

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 211, 234, 421, 422, 633, 842, 1263, 1266, 1899, 2526, 2743, 3789, 3798, 5473, 5486, 7578, 8229, 10946, 16419, 16458, 24687, 32838, 49257, 49374, 88831, 98514, 177662, 266493, 532986, 799479, 1154803, 1598958, 2309606, 3464409, 6928818, 10393227, 20786454]

約数ペア:

[(1, 20786454), (2, 10393227), (3, 6928818), (6, 3464409), (9, 2309606), (13, 1598958), (18, 1154803), (26, 799479), (39, 532986), (78, 266493), (117, 177662), (211, 98514), (234, 88831), (421, 49374), (422, 49257), (633, 32838), (842, 24687), (1263, 16458), (1266, 16419), (1899, 10946), (2526, 8229), (2743, 7578), (3789, 5486), (3798, 5473)]