20161971387

素因数分解:

$3^4\times {\mathrm{2237}}^1\times {\mathrm{111271}}^1$

素因数の和:113520

約数の個数: 20

約数和(自身を含む): 30132235056

約数和(自身を除く): 9970263669

約数列:

[1, 3, 9, 27, 81, 2237, 6711, 20133, 60399, 111271, 181197, 333813, 1001439, 3004317, 9012951, 248913227, 746739681, 2240219043, 6720657129, 20161971387]

約数ペア:

[(1, 20161971387), (3, 6720657129), (9, 2240219043), (27, 746739681), (81, 248913227), (2237, 9012951), (6711, 3004317), (20133, 1001439), (60399, 333813), (111271, 181197)]