128580963

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{751}}^1$

素因数の和:1055

約数の個数: 32

約数和(自身を含む): 203292672

約数和(自身を除く): 74711709

約数列:

[1, 3, 7, 21, 31, 93, 217, 263, 651, 751, 789, 1841, 2253, 5257, 5523, 8153, 15771, 23281, 24459, 57071, 69843, 162967, 171213, 197513, 488901, 592539, 1382591, 4147773, 6122903, 18368709, 42860321, 128580963]

約数ペア:

[(1, 128580963), (3, 42860321), (7, 18368709), (21, 6122903), (31, 4147773), (93, 1382591), (217, 592539), (263, 488901), (651, 197513), (751, 171213), (789, 162967), (1841, 69843), (2253, 57071), (5257, 24459), (5523, 23281), (8153, 15771)]