278720463

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{1663}}^1$

素因数の和:2043

約数の個数: 32

約数和(自身を含む): 444727296

約数和(自身を除く): 166006833

約数列:

[1, 3, 7, 21, 23, 69, 161, 347, 483, 1041, 1663, 2429, 4989, 7287, 7981, 11641, 23943, 34923, 38249, 55867, 114747, 167601, 267743, 577061, 803229, 1731183, 4039427, 12118281, 13272403, 39817209, 92906821, 278720463]

約数ペア:

[(1, 278720463), (3, 92906821), (7, 39817209), (21, 13272403), (23, 12118281), (69, 4039427), (161, 1731183), (347, 803229), (483, 577061), (1041, 267743), (1663, 167601), (2429, 114747), (4989, 55867), (7287, 38249), (7981, 34923), (11641, 23943)]