19347855

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 32306688

約数和(自身を除く): 12958833

約数列:

[1, 3, 5, 15, 37, 71, 111, 185, 213, 355, 491, 555, 1065, 1473, 2455, 2627, 7365, 7881, 13135, 18167, 34861, 39405, 54501, 90835, 104583, 174305, 272505, 522915, 1289857, 3869571, 6449285, 19347855]

約数ペア:

[(1, 19347855), (3, 6449285), (5, 3869571), (15, 1289857), (37, 522915), (71, 272505), (111, 174305), (185, 104583), (213, 90835), (355, 54501), (491, 39405), (555, 34861), (1065, 18167), (1473, 13135), (2455, 7881), (2627, 7365)]