28170921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{2477}}^1$

素因数の和:2720

約数の個数: 16

約数和(自身を含む): 39965184

約数和(自身を除く): 11794263

約数列:

[1, 3, 17, 51, 223, 669, 2477, 3791, 7431, 11373, 42109, 126327, 552371, 1657113, 9390307, 28170921]

約数ペア:

[(1, 28170921), (3, 9390307), (17, 1657113), (51, 552371), (223, 126327), (669, 42109), (2477, 11373), (3791, 7431)]