28725109

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 34456320

約数和(自身を除く): 5731211

約数列:

[1, 7, 29, 71, 203, 497, 1993, 2059, 13951, 14413, 57797, 141503, 404579, 990521, 4103587, 28725109]

約数ペア:

[(1, 28725109), (7, 4103587), (29, 990521), (71, 404579), (203, 141503), (497, 57797), (1993, 14413), (2059, 13951)]