18195915

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 12216885

約数列:

[1, 3, 5, 15, 31, 93, 109, 155, 327, 359, 465, 545, 1077, 1635, 1795, 3379, 5385, 10137, 11129, 16895, 33387, 39131, 50685, 55645, 117393, 166935, 195655, 586965, 1213061, 3639183, 6065305, 18195915]

約数ペア:

[(1, 18195915), (3, 6065305), (5, 3639183), (15, 1213061), (31, 586965), (93, 195655), (109, 166935), (155, 117393), (327, 55645), (359, 50685), (465, 39131), (545, 33387), (1077, 16895), (1635, 11129), (1795, 10137), (3379, 5385)]