18945955

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5059}}^1$

素因数の和:5178

約数の個数: 16

約数和(自身を含む): 26231040

約数和(自身を除く): 7285085

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5059, 25295, 35413, 177065, 541313, 2706565, 3789191, 18945955]

約数ペア:

[(1, 18945955), (5, 3789191), (7, 2706565), (35, 541313), (107, 177065), (535, 35413), (749, 25295), (3745, 5059)]