20059809

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2347}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 34262016

約数和(自身を除く): 14202207

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2347, 2849, 7041, 8547, 16429, 25817, 49287, 77451, 86839, 180719, 260517, 542157, 607873, 955229, 1823619, 2865687, 6686603, 20059809]

約数ペア:

[(1, 20059809), (3, 6686603), (7, 2865687), (11, 1823619), (21, 955229), (33, 607873), (37, 542157), (77, 260517), (111, 180719), (231, 86839), (259, 77451), (407, 49287), (777, 25817), (1221, 16429), (2347, 8547), (2849, 7041)]