78868461

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{659}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 124185600

約数和(自身を除く): 45317139

約数列:

[1, 3, 7, 21, 41, 123, 139, 287, 417, 659, 861, 973, 1977, 2919, 4613, 5699, 13839, 17097, 27019, 39893, 81057, 91601, 119679, 189133, 274803, 567399, 641207, 1923621, 3755641, 11266923, 26289487, 78868461]

約数ペア:

[(1, 78868461), (3, 26289487), (7, 11266923), (21, 3755641), (41, 1923621), (123, 641207), (139, 567399), (287, 274803), (417, 189133), (659, 119679), (861, 91601), (973, 81057), (1977, 39893), (2919, 27019), (4613, 17097), (5699, 13839)]