19854215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{1433}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 25399008

約数和(自身を除く): 5544793

約数列:

[1, 5, 17, 85, 163, 815, 1433, 2771, 7165, 13855, 24361, 121805, 233579, 1167895, 3970843, 19854215]

約数ペア:

[(1, 19854215), (5, 3970843), (17, 1167895), (85, 233579), (163, 121805), (815, 24361), (1433, 13855), (2771, 7165)]