15991479

素因数分解:

$3^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 27271680

約数和(自身を除く): 11280201

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 211, 401, 633, 1203, 1477, 1899, 2807, 3609, 4431, 5697, 8421, 10827, 13293, 25263, 39879, 75789, 84611, 253833, 592277, 761499, 1776831, 2284497, 5330493, 15991479]

約数ペア:

[(1, 15991479), (3, 5330493), (7, 2284497), (9, 1776831), (21, 761499), (27, 592277), (63, 253833), (189, 84611), (211, 75789), (401, 39879), (633, 25263), (1203, 13293), (1477, 10827), (1899, 8421), (2807, 5697), (3609, 4431)]