19809915

素因数分解:

$3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3229}}^1$

素因数の和:3646

約数の個数: 16

約数和(自身を含む): 31783200

約数和(自身を除く): 11973285

約数列:

[1, 3, 5, 15, 409, 1227, 2045, 3229, 6135, 9687, 16145, 48435, 1320661, 3961983, 6603305, 19809915]

約数ペア:

[(1, 19809915), (3, 6603305), (5, 3961983), (15, 1320661), (409, 48435), (1227, 16145), (2045, 9687), (3229, 6135)]