21447770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{719}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19505830

約数列:

[1, 2, 5, 10, 19, 38, 95, 157, 190, 314, 719, 785, 1438, 1570, 2983, 3595, 5966, 7190, 13661, 14915, 27322, 29830, 68305, 112883, 136610, 225766, 564415, 1128830, 2144777, 4289554, 10723885, 21447770]

約数ペア:

[(1, 21447770), (2, 10723885), (5, 4289554), (10, 2144777), (19, 1128830), (38, 564415), (95, 225766), (157, 136610), (190, 112883), (314, 68305), (719, 29830), (785, 27322), (1438, 14915), (1570, 13661), (2983, 7190), (3595, 5966)]