18913245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4217}}^1$

素因数の和:4261

約数の個数: 32

約数和(自身を含む): 34013952

約数和(自身を除く): 15100707

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4217, 4485, 12651, 21085, 54821, 63255, 96991, 164463, 274105, 290973, 484955, 822315, 1260883, 1454865, 3782649, 6304415, 18913245]

約数ペア:

[(1, 18913245), (3, 6304415), (5, 3782649), (13, 1454865), (15, 1260883), (23, 822315), (39, 484955), (65, 290973), (69, 274105), (115, 164463), (195, 96991), (299, 63255), (345, 54821), (897, 21085), (1495, 12651), (4217, 4485)]