81507711

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 115867648

約数和(自身を除く): 34359937

約数列:

[1, 3, 31, 67, 93, 103, 127, 201, 309, 381, 2077, 3193, 3937, 6231, 6901, 8509, 9579, 11811, 13081, 20703, 25527, 39243, 213931, 263779, 405511, 641793, 791337, 876427, 1216533, 2629281, 27169237, 81507711]

約数ペア:

[(1, 81507711), (3, 27169237), (31, 2629281), (67, 1216533), (93, 876427), (103, 791337), (127, 641793), (201, 405511), (309, 263779), (381, 213931), (2077, 39243), (3193, 25527), (3937, 20703), (6231, 13081), (6901, 11811), (8509, 9579)]