19993965

素因数分解:

$3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3259}}^1$

素因数の和:3676

約数の個数: 16

約数和(自身を含む): 32078400

約数和(自身を除く): 12084435

約数列:

[1, 3, 5, 15, 409, 1227, 2045, 3259, 6135, 9777, 16295, 48885, 1332931, 3998793, 6664655, 19993965]

約数ペア:

[(1, 19993965), (3, 6664655), (5, 3998793), (15, 1332931), (409, 48885), (1227, 16295), (2045, 9777), (3259, 6135)]