20081385

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7829}}^1$

素因数の和:7862

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 17502615

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 7829, 23487, 39145, 70461, 117435, 148751, 211383, 352305, 446253, 743755, 1056915, 1338759, 2231265, 4016277, 6693795, 20081385]

約数ペア:

[(1, 20081385), (3, 6693795), (5, 4016277), (9, 2231265), (15, 1338759), (19, 1056915), (27, 743755), (45, 446253), (57, 352305), (95, 211383), (135, 148751), (171, 117435), (285, 70461), (513, 39145), (855, 23487), (2565, 7829)]