19973113

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 21954240

約数和(自身を除く): 1981127

約数列:

[1, 17, 43, 89, 307, 731, 1513, 3827, 5219, 13201, 27323, 65059, 224417, 464491, 1174889, 19973113]

約数ペア:

[(1, 19973113), (17, 1174889), (43, 464491), (89, 224417), (307, 65059), (731, 27323), (1513, 13201), (3827, 5219)]