21156410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4691}}^1$

素因数の和:4750

約数の個数: 32

約数和(自身を含む): 42565824

約数和(自身を除く): 21409414

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4691, 9382, 23455, 46910, 51601, 103202, 192331, 258005, 384662, 516010, 961655, 1923310, 2115641, 4231282, 10578205, 21156410]

約数ペア:

[(1, 21156410), (2, 10578205), (5, 4231282), (10, 2115641), (11, 1923310), (22, 961655), (41, 516010), (55, 384662), (82, 258005), (110, 192331), (205, 103202), (410, 51601), (451, 46910), (902, 23455), (2255, 9382), (4510, 4691)]