19997852

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23039}}^1$

素因数の和:23081

約数の個数: 24

約数和(自身を含む): 41287680

約数和(自身を除く): 21289828

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23039, 46078, 92156, 161273, 322546, 645092, 714209, 1428418, 2856836, 4999463, 9998926, 19997852]

約数ペア:

[(1, 19997852), (2, 9998926), (4, 4999463), (7, 2856836), (14, 1428418), (28, 714209), (31, 645092), (62, 322546), (124, 161273), (217, 92156), (434, 46078), (868, 23039)]