19970417

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:848

約数の個数: 16

約数和(自身を含む): 22121472

約数和(自身を除く): 2151055

約数列:

[1, 23, 31, 37, 713, 757, 851, 1147, 17411, 23467, 26381, 28009, 539741, 644207, 868279, 19970417]

約数ペア:

[(1, 19970417), (23, 868279), (31, 644207), (37, 539741), (713, 28009), (757, 26381), (851, 23467), (1147, 17411)]