15124221

素因数分解:

$3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{557}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 25069824

約数和(自身を除く): 9945603

約数列:

[1, 3, 7, 9, 21, 63, 431, 557, 1293, 1671, 3017, 3879, 3899, 5013, 9051, 11697, 27153, 35091, 240067, 720201, 1680469, 2160603, 5041407, 15124221]

約数ペア:

[(1, 15124221), (3, 5041407), (7, 2160603), (9, 1680469), (21, 720201), (63, 240067), (431, 35091), (557, 27153), (1293, 11697), (1671, 9051), (3017, 5013), (3879, 3899)]