20163573

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2797}}^1$

素因数の和:2898

約数の個数: 20

約数和(自身を含む): 30470220

約数和(自身を除く): 10306647

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2797, 7209, 8391, 25173, 75519, 226557, 248933, 746799, 2240397, 6721191, 20163573]

約数ペア:

[(1, 20163573), (3, 6721191), (9, 2240397), (27, 746799), (81, 248933), (89, 226557), (267, 75519), (801, 25173), (2403, 8391), (2797, 7209)]