81194967

素因数分解:

$3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1609}}^1$

素因数の和:1717

約数の個数: 40

約数和(自身を含む): 140263200

約数和(自身を除く): 59068233

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 267, 567, 623, 801, 1609, 1869, 2403, 4827, 5607, 7209, 11263, 14481, 16821, 33789, 43443, 50463, 101367, 130329, 143201, 304101, 429603, 912303, 1002407, 1288809, 3007221, 3866427, 9021663, 11599281, 27064989, 81194967]

約数ペア:

[(1, 81194967), (3, 27064989), (7, 11599281), (9, 9021663), (21, 3866427), (27, 3007221), (63, 1288809), (81, 1002407), (89, 912303), (189, 429603), (267, 304101), (567, 143201), (623, 130329), (801, 101367), (1609, 50463), (1869, 43443), (2403, 33789), (4827, 16821), (5607, 14481), (7209, 11263)]