1559997

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 2402400

約数和(自身を除く): 842403

約数列:

[1, 3, 9, 29, 43, 87, 129, 139, 261, 387, 417, 1247, 1251, 3741, 4031, 5977, 11223, 12093, 17931, 36279, 53793, 173333, 519999, 1559997]

約数ペア:

[(1, 1559997), (3, 519999), (9, 173333), (29, 53793), (43, 36279), (87, 17931), (129, 12093), (139, 11223), (261, 5977), (387, 4031), (417, 3741), (1247, 1251)]