20797641

素因数分解:

$3^6\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:672

約数の個数: 28

約数和(自身を含む): 31898112

約数和(自身を除く): 11100471

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 607, 729, 1269, 1821, 3807, 5463, 11421, 16389, 28529, 34263, 49167, 85587, 147501, 256761, 442503, 770283, 2310849, 6932547, 20797641]

約数ペア:

[(1, 20797641), (3, 6932547), (9, 2310849), (27, 770283), (47, 442503), (81, 256761), (141, 147501), (243, 85587), (423, 49167), (607, 34263), (729, 28529), (1269, 16389), (1821, 11421), (3807, 5463)]