19188105

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12745335

約数列:

[1, 3, 5, 15, 43, 71, 129, 213, 215, 355, 419, 645, 1065, 1257, 2095, 3053, 6285, 9159, 15265, 18017, 29749, 45795, 54051, 89247, 90085, 148745, 270255, 446235, 1279207, 3837621, 6396035, 19188105]

約数ペア:

[(1, 19188105), (3, 6396035), (5, 3837621), (15, 1279207), (43, 446235), (71, 270255), (129, 148745), (213, 90085), (215, 89247), (355, 54051), (419, 45795), (645, 29749), (1065, 18017), (1257, 15265), (2095, 9159), (3053, 6285)]