18889585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{911}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8689295

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 319, 377, 715, 911, 1595, 1885, 4147, 4555, 10021, 11843, 20735, 26419, 50105, 59215, 130273, 132095, 290609, 343447, 651365, 1453045, 1717235, 3777917, 18889585]

約数ペア:

[(1, 18889585), (5, 3777917), (11, 1717235), (13, 1453045), (29, 651365), (55, 343447), (65, 290609), (143, 132095), (145, 130273), (319, 59215), (377, 50105), (715, 26419), (911, 20735), (1595, 11843), (1885, 10021), (4147, 4555)]