21649060

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8263}}^1$

素因数の和:8403

約数の個数: 24

約数和(自身を含む): 45815616

約数和(自身を除く): 24166556

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 8263, 16526, 33052, 41315, 82630, 165260, 1082453, 2164906, 4329812, 5412265, 10824530, 21649060]

約数ペア:

[(1, 21649060), (2, 10824530), (4, 5412265), (5, 4329812), (10, 2164906), (20, 1082453), (131, 165260), (262, 82630), (524, 41315), (655, 33052), (1310, 16526), (2620, 8263)]