31309839

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{28751}}^1$

素因数の和:28779

約数の個数: 18

約数和(自身を含む): 49712208

約数和(自身を除く): 18402369

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 28751, 86253, 258759, 316261, 948783, 2846349, 3478871, 10436613, 31309839]

約数ペア:

[(1, 31309839), (3, 10436613), (9, 3478871), (11, 2846349), (33, 948783), (99, 316261), (121, 258759), (363, 86253), (1089, 28751)]