31430187

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{12517}}^1$

素因数の和:12560

約数の個数: 20

約数和(自身を含む): 48469696

約数和(自身を除く): 17039509

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 12517, 37551, 112653, 337959, 388027, 1013877, 1164081, 3492243, 10476729, 31430187]

約数ペア:

[(1, 31430187), (3, 10476729), (9, 3492243), (27, 1164081), (31, 1013877), (81, 388027), (93, 337959), (279, 112653), (837, 37551), (2511, 12517)]