168993903

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{643}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 254467584

約数和(自身を除く): 85473681

約数列:

[1, 3, 13, 23, 39, 69, 293, 299, 643, 879, 897, 1929, 3809, 6739, 8359, 11427, 14789, 20217, 25077, 44367, 87607, 188399, 192257, 262821, 565197, 576771, 2449187, 4333177, 7347561, 12999531, 56331301, 168993903]

約数ペア:

[(1, 168993903), (3, 56331301), (13, 12999531), (23, 7347561), (39, 4333177), (69, 2449187), (293, 576771), (299, 565197), (643, 262821), (879, 192257), (897, 188399), (1929, 87607), (3809, 44367), (6739, 25077), (8359, 20217), (11427, 14789)]