19818165

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1571}}^1$

素因数の和:1637

約数の個数: 24

約数和(自身を含む): 32861088

約数和(自身を除く): 13042923

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 841, 1571, 2523, 4205, 4713, 7855, 12615, 23565, 45559, 136677, 227795, 683385, 1321211, 3963633, 6606055, 19818165]

約数ペア:

[(1, 19818165), (3, 6606055), (5, 3963633), (15, 1321211), (29, 683385), (87, 227795), (145, 136677), (435, 45559), (841, 23565), (1571, 12615), (2523, 7855), (4205, 4713)]