21285267

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 29140608

約数和(自身を除く): 7855341

約数列:

[1, 3, 73, 83, 219, 249, 1171, 3513, 6059, 18177, 85483, 97193, 256449, 291579, 7095089, 21285267]

約数ペア:

[(1, 21285267), (3, 7095089), (73, 291579), (83, 256449), (219, 97193), (249, 85483), (1171, 18177), (3513, 6059)]