19687516

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 35207424

約数和(自身を除く): 15519908

約数列:

[1, 2, 4, 73, 146, 191, 292, 353, 382, 706, 764, 1412, 13943, 25769, 27886, 51538, 55772, 67423, 103076, 134846, 269692, 4921879, 9843758, 19687516]

約数ペア:

[(1, 19687516), (2, 9843758), (4, 4921879), (73, 269692), (146, 134846), (191, 103076), (292, 67423), (353, 55772), (382, 51538), (706, 27886), (764, 25769), (1412, 13943)]