28778659

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1381}}^1$

素因数の和:1630

約数の個数: 16

約数和(自身を含む): 35600320

約数和(自身を除く): 6821661

約数列:

[1, 7, 13, 91, 229, 1381, 1603, 2977, 9667, 17953, 20839, 125671, 316249, 2213743, 4111237, 28778659]

約数ペア:

[(1, 28778659), (7, 4111237), (13, 2213743), (91, 316249), (229, 125671), (1381, 20839), (1603, 17953), (2977, 9667)]