28821921

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1\times {\mathrm{677}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 40224384

約数和(自身を除く): 11402463

約数列:

[1, 3, 23, 69, 617, 677, 1851, 2031, 14191, 15571, 42573, 46713, 417709, 1253127, 9607307, 28821921]

約数ペア:

[(1, 28821921), (3, 9607307), (23, 1253127), (69, 417709), (617, 46713), (677, 42573), (1851, 15571), (2031, 14191)]