21371115

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 35910720

約数和(自身を除く): 14539605

約数列:

[1, 3, 5, 15, 29, 73, 87, 145, 219, 365, 435, 673, 1095, 2019, 2117, 3365, 6351, 10095, 10585, 19517, 31755, 49129, 58551, 97585, 147387, 245645, 292755, 736935, 1424741, 4274223, 7123705, 21371115]

約数ペア:

[(1, 21371115), (3, 7123705), (5, 4274223), (15, 1424741), (29, 736935), (73, 292755), (87, 245645), (145, 147387), (219, 97585), (365, 58551), (435, 49129), (673, 31755), (1095, 19517), (2019, 10585), (2117, 10095), (3365, 6351)]