393199906

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 665723520

約数和(自身を除く): 272523614

約数列:

[1, 2, 11, 22, 79, 121, 131, 157, 158, 242, 262, 314, 869, 1441, 1727, 1738, 2882, 3454, 9559, 10349, 12403, 15851, 18997, 19118, 20567, 20698, 24806, 31702, 37994, 41134, 113839, 136433, 226237, 227678, 272866, 452474, 1252229, 1500763, 1624793, 2488607, 2504458, 3001526, 3249586, 4977214, 17872723, 35745446, 196599953, 393199906]

約数ペア:

[(1, 393199906), (2, 196599953), (11, 35745446), (22, 17872723), (79, 4977214), (121, 3249586), (131, 3001526), (157, 2504458), (158, 2488607), (242, 1624793), (262, 1500763), (314, 1252229), (869, 452474), (1441, 272866), (1727, 227678), (1738, 226237), (2882, 136433), (3454, 113839), (9559, 41134), (10349, 37994), (12403, 31702), (15851, 24806), (18997, 20698), (19118, 20567)]