19378565

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 24904440

約数和(自身を除く): 5525875

約数列:

[1, 5, 31, 37, 109, 155, 185, 545, 961, 1147, 3379, 4033, 4805, 5735, 16895, 20165, 35557, 104749, 125023, 177785, 523745, 625115, 3875713, 19378565]

約数ペア:

[(1, 19378565), (5, 3875713), (31, 625115), (37, 523745), (109, 177785), (155, 125023), (185, 104749), (545, 35557), (961, 20165), (1147, 16895), (3379, 5735), (4033, 4805)]