19977495

素因数分解:

$3^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1307}}^1$

素因数の和:2334

約数の個数: 16

約数和(自身を含む): 32019840

約数和(自身を除く): 12042345

約数列:

[1, 3, 5, 15, 1019, 1307, 3057, 3921, 5095, 6535, 15285, 19605, 1331833, 3995499, 6659165, 19977495]

約数ペア:

[(1, 19977495), (3, 6659165), (5, 3995499), (15, 1331833), (1019, 19605), (1307, 15285), (3057, 6535), (3921, 5095)]