21078969

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{3319}}^1$

素因数の和:3424

約数の個数: 16

約数和(自身を含む): 29481600

約数和(自身を除く): 8402631

約数列:

[1, 3, 29, 73, 87, 219, 2117, 3319, 6351, 9957, 96251, 242287, 288753, 726861, 7026323, 21078969]

約数ペア:

[(1, 21078969), (3, 7026323), (29, 726861), (73, 288753), (87, 242287), (219, 96251), (2117, 9957), (3319, 6351)]