221427495

素因数分解:

$3^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{7121}}^1$

素因数の和:7823

約数の個数: 24

約数和(自身を含む): 384417072

約数和(自身を除く): 162989577

約数列:

[1, 3, 5, 9, 15, 45, 691, 2073, 3455, 6219, 7121, 10365, 21363, 31095, 35605, 64089, 106815, 320445, 4920611, 14761833, 24603055, 44285499, 73809165, 221427495]

約数ペア:

[(1, 221427495), (3, 73809165), (5, 44285499), (9, 24603055), (15, 14761833), (45, 4920611), (691, 320445), (2073, 106815), (3455, 64089), (6219, 35605), (7121, 31095), (10365, 21363)]