19965674

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7489}}^1$

素因数の和:7565

約数の個数: 16

約数和(自身を含む): 31637760

約数和(自身を除く): 11672086

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7489, 14978, 232159, 322027, 464318, 644054, 9982837, 19965674]

約数ペア:

[(1, 19965674), (2, 9982837), (31, 644054), (43, 464318), (62, 322027), (86, 232159), (1333, 14978), (2666, 7489)]