19914255

素因数分解:

$3^4\times 5^1\times {\mathrm{49171}}^1$

素因数の和:49188

約数の個数: 20

約数和(自身を含む): 35698872

約数和(自身を除く): 15784617

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49171, 147513, 245855, 442539, 737565, 1327617, 2212695, 3982851, 6638085, 19914255]

約数ペア:

[(1, 19914255), (3, 6638085), (5, 3982851), (9, 2212695), (15, 1327617), (27, 737565), (45, 442539), (81, 245855), (135, 147513), (405, 49171)]