20807295

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1471}}^1$

素因数の和:1543

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 14803329

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1471, 2829, 4413, 4715, 7355, 14145, 22065, 33833, 60311, 101499, 169165, 180933, 301555, 507495, 904665, 1387153, 4161459, 6935765, 20807295]

約数ペア:

[(1, 20807295), (3, 6935765), (5, 4161459), (15, 1387153), (23, 904665), (41, 507495), (69, 301555), (115, 180933), (123, 169165), (205, 101499), (345, 60311), (615, 33833), (943, 22065), (1471, 14145), (2829, 7355), (4413, 4715)]