19886251

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{953}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 24910848

約数和(自身を除く): 5024597

約数列:

[1, 7, 11, 77, 271, 953, 1897, 2981, 6671, 10483, 20867, 73381, 258263, 1807841, 2840893, 19886251]

約数ペア:

[(1, 19886251), (7, 2840893), (11, 1807841), (77, 258263), (271, 73381), (953, 20867), (1897, 10483), (2981, 6671)]