21754655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{7121}}^1$

素因数の和:7186

約数の個数: 16

約数和(自身を含む): 28715904

約数和(自身を除く): 6961249

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 7121, 35605, 92573, 334687, 462865, 1673435, 4350931, 21754655]

約数ペア:

[(1, 21754655), (5, 4350931), (13, 1673435), (47, 462865), (65, 334687), (235, 92573), (611, 35605), (3055, 7121)]