20155485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10103}}^1$

素因数の和:10137

約数の個数: 32

約数和(自身を含む): 38799360

約数和(自身を除く): 18643875

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10103, 30309, 50515, 70721, 151545, 191957, 212163, 353605, 575871, 959785, 1060815, 1343699, 2879355, 4031097, 6718495, 20155485]

約数ペア:

[(1, 20155485), (3, 6718495), (5, 4031097), (7, 2879355), (15, 1343699), (19, 1060815), (21, 959785), (35, 575871), (57, 353605), (95, 212163), (105, 191957), (133, 151545), (285, 70721), (399, 50515), (665, 30309), (1995, 10103)]