28692387

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{5807}}^1$

素因数の和:5880

約数の個数: 20

約数和(自身を含む): 43571616

約数和(自身を除く): 14879229

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 5807, 17421, 52263, 156789, 354227, 470367, 1062681, 3188043, 9564129, 28692387]

約数ペア:

[(1, 28692387), (3, 9564129), (9, 3188043), (27, 1062681), (61, 470367), (81, 354227), (183, 156789), (549, 52263), (1647, 17421), (4941, 5807)]