20187215

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9239}}^1$

素因数の和:9286

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 6423985

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 9239, 46195, 175541, 212497, 877705, 1062485, 4037443, 20187215]

約数ペア:

[(1, 20187215), (5, 4037443), (19, 1062485), (23, 877705), (95, 212497), (115, 175541), (437, 46195), (2185, 9239)]