1298367

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 2205216

約数和(自身を除く): 906849

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 557, 777, 1671, 2331, 3899, 5013, 11697, 20609, 35091, 61827, 144263, 185481, 432789, 1298367]

約数ペア:

[(1, 1298367), (3, 432789), (7, 185481), (9, 144263), (21, 61827), (37, 35091), (63, 20609), (111, 11697), (259, 5013), (333, 3899), (557, 2331), (777, 1671)]