15221367

素因数分解:

$3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 25241216

約数和(自身を除く): 10019849

約数列:

[1, 3, 7, 9, 21, 63, 307, 787, 921, 2149, 2361, 2763, 5509, 6447, 7083, 16527, 19341, 49581, 241609, 724827, 1691263, 2174481, 5073789, 15221367]

約数ペア:

[(1, 15221367), (3, 5073789), (7, 2174481), (9, 1691263), (21, 724827), (63, 241609), (307, 49581), (787, 19341), (921, 16527), (2149, 7083), (2361, 6447), (2763, 5509)]