21235527

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2819}}^1$

素因数の和:2865

約数の個数: 24

約数和(自身を含む): 32847360

約数和(自身を除く): 11611833

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2819, 7533, 8457, 25371, 76113, 87389, 228339, 262167, 685017, 786501, 2359503, 7078509, 21235527]

約数ペア:

[(1, 21235527), (3, 7078509), (9, 2359503), (27, 786501), (31, 685017), (81, 262167), (93, 228339), (243, 87389), (279, 76113), (837, 25371), (2511, 8457), (2819, 7533)]