20512128978

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{1579}}^1\times {\mathrm{65609}}^1$

素因数の和:67207

約数の個数: 48

約数和(自身を含む): 48514658400

約数和(自身を除く): 28002529422

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 1579, 3158, 4737, 9474, 14211, 17369, 28422, 34738, 52107, 65609, 104214, 131218, 156321, 196827, 312642, 393654, 590481, 721699, 1180962, 1443398, 2165097, 4330194, 6495291, 12990582, 103596611, 207193222, 310789833, 621579666, 932369499, 1139562721, 1864738998, 2279125442, 3418688163, 6837376326, 10256064489, 20512128978]

約数ペア:

[(1, 20512128978), (2, 10256064489), (3, 6837376326), (6, 3418688163), (9, 2279125442), (11, 1864738998), (18, 1139562721), (22, 932369499), (33, 621579666), (66, 310789833), (99, 207193222), (198, 103596611), (1579, 12990582), (3158, 6495291), (4737, 4330194), (9474, 2165097), (14211, 1443398), (17369, 1180962), (28422, 721699), (34738, 590481), (52107, 393654), (65609, 312642), (104214, 196827), (131218, 156321)]