28784811

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{179}}^1\times {\mathrm{443}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 42517440

約数和(自身を除く): 13732629

約数列:

[1, 3, 11, 33, 121, 179, 363, 443, 537, 1329, 1969, 4873, 5907, 14619, 21659, 53603, 64977, 79297, 160809, 237891, 872267, 2616801, 9594937, 28784811]

約数ペア:

[(1, 28784811), (3, 9594937), (11, 2616801), (33, 872267), (121, 237891), (179, 160809), (363, 79297), (443, 64977), (537, 53603), (1329, 21659), (1969, 14619), (4873, 5907)]