21362255

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{487}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 26609664

約数和(自身を除く): 5247409

約数列:

[1, 5, 31, 155, 283, 487, 1415, 2435, 8773, 15097, 43865, 75485, 137821, 689105, 4272451, 21362255]

約数ペア:

[(1, 21362255), (5, 4272451), (31, 689105), (155, 137821), (283, 75485), (487, 43865), (1415, 15097), (2435, 8773)]