81620406

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{215927}}^1$

素因数の和:215945

約数の個数: 32

約数和(自身を含む): 207290880

約数和(自身を除く): 125670474

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 215927, 431854, 647781, 1295562, 1511489, 1943343, 3022978, 3886686, 4534467, 5830029, 9068934, 11660058, 13603401, 27206802, 40810203, 81620406]

約数ペア:

[(1, 81620406), (2, 40810203), (3, 27206802), (6, 13603401), (7, 11660058), (9, 9068934), (14, 5830029), (18, 4534467), (21, 3886686), (27, 3022978), (42, 1943343), (54, 1511489), (63, 1295562), (126, 647781), (189, 431854), (378, 215927)]