18669945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{661}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 34318080

約数和(自身を除く): 15648135

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 269, 661, 807, 1345, 1883, 1983, 3305, 4035, 4627, 5649, 9415, 9915, 13881, 23135, 28245, 69405, 177809, 533427, 889045, 1244663, 2667135, 3733989, 6223315, 18669945]

約数ペア:

[(1, 18669945), (3, 6223315), (5, 3733989), (7, 2667135), (15, 1244663), (21, 889045), (35, 533427), (105, 177809), (269, 69405), (661, 28245), (807, 23135), (1345, 13881), (1883, 9915), (1983, 9415), (3305, 5649), (4035, 4627)]