19989105

素因数分解:

$3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{6977}}^1$

素因数の和:7176

約数の個数: 16

約数和(自身を含む): 32154624

約数和(自身を除く): 12165519

約数列:

[1, 3, 5, 15, 191, 573, 955, 2865, 6977, 20931, 34885, 104655, 1332607, 3997821, 6663035, 19989105]

約数ペア:

[(1, 19989105), (3, 6663035), (5, 3997821), (15, 1332607), (191, 104655), (573, 34885), (955, 20931), (2865, 6977)]