81654516

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{20809}}^1$

素因数の和:20928

約数の個数: 36

約数和(自身を含む): 208308100

約数和(自身を除く): 126653584

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 20809, 41618, 62427, 83236, 124854, 187281, 249708, 374562, 749124, 2268181, 4536362, 6804543, 9072724, 13609086, 20413629, 27218172, 40827258, 81654516]

約数ペア:

[(1, 81654516), (2, 40827258), (3, 27218172), (4, 20413629), (6, 13609086), (9, 9072724), (12, 6804543), (18, 4536362), (36, 2268181), (109, 749124), (218, 374562), (327, 249708), (436, 187281), (654, 124854), (981, 83236), (1308, 62427), (1962, 41618), (3924, 20809)]