21362390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3863}}^1$

素因数の和:3956

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 23150890

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 3863, 5530, 7726, 19315, 27041, 38630, 54082, 135205, 270410, 305177, 610354, 1525885, 2136239, 3051770, 4272478, 10681195, 21362390]

約数ペア:

[(1, 21362390), (2, 10681195), (5, 4272478), (7, 3051770), (10, 2136239), (14, 1525885), (35, 610354), (70, 305177), (79, 270410), (158, 135205), (395, 54082), (553, 38630), (790, 27041), (1106, 19315), (2765, 7726), (3863, 5530)]