63921555

素因数分解:

$3^4\times 5^1\times {\mathrm{157831}}^1$

素因数の和:157848

約数の個数: 20

約数和(自身を含む): 114586032

約数和(自身を除く): 50664477

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 157831, 473493, 789155, 1420479, 2367465, 4261437, 7102395, 12784311, 21307185, 63921555]

約数ペア:

[(1, 63921555), (3, 21307185), (5, 12784311), (9, 7102395), (15, 4261437), (27, 2367465), (45, 1420479), (81, 789155), (135, 473493), (405, 157831)]