19871757

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 31248000

約数和(自身を除く): 11376243

約数列:

[1, 3, 9, 27, 29, 41, 87, 123, 261, 369, 619, 783, 1107, 1189, 1857, 3567, 5571, 10701, 16713, 17951, 25379, 32103, 53853, 76137, 161559, 228411, 484677, 685233, 735991, 2207973, 6623919, 19871757]

約数ペア:

[(1, 19871757), (3, 6623919), (9, 2207973), (27, 735991), (29, 685233), (41, 484677), (87, 228411), (123, 161559), (261, 76137), (369, 53853), (619, 32103), (783, 25379), (1107, 17951), (1189, 16713), (1857, 10701), (3567, 5571)]