18495005

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 22941360

約数和(自身を除く): 4446355

約数列:

[1, 5, 37, 185, 257, 389, 1285, 1945, 9509, 14393, 47545, 71965, 99973, 499865, 3699001, 18495005]

約数ペア:

[(1, 18495005), (5, 3699001), (37, 499865), (185, 99973), (257, 71965), (389, 47545), (1285, 14393), (1945, 9509)]