40420287

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{617}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 60737040

約数和(自身を除く): 20316753

約数列:

[1, 3, 9, 29, 87, 251, 261, 617, 753, 1851, 2259, 5553, 7279, 17893, 21837, 53679, 65511, 154867, 161037, 464601, 1393803, 4491143, 13473429, 40420287]

約数ペア:

[(1, 40420287), (3, 13473429), (9, 4491143), (29, 1393803), (87, 464601), (251, 161037), (261, 154867), (617, 65511), (753, 53679), (1851, 21837), (2259, 17893), (5553, 7279)]