220762989

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 340139712

約数和(自身を除く): 119376723

約数列:

[1, 3, 9, 27, 43, 81, 129, 241, 263, 387, 723, 789, 1161, 2169, 2367, 3483, 6507, 7101, 10363, 11309, 19521, 21303, 31089, 33927, 63383, 93267, 101781, 190149, 279801, 305343, 570447, 839403, 916029, 1711341, 2725469, 5134023, 8176407, 24529221, 73587663, 220762989]

約数ペア:

[(1, 220762989), (3, 73587663), (9, 24529221), (27, 8176407), (43, 5134023), (81, 2725469), (129, 1711341), (241, 916029), (263, 839403), (387, 570447), (723, 305343), (789, 279801), (1161, 190149), (2169, 101781), (2367, 93267), (3483, 63383), (6507, 33927), (7101, 31089), (10363, 21303), (11309, 19521)]