2021642

素因数分解:

$2^1\times 7^4\times {\mathrm{421}}^1$

素因数の和:451

約数の個数: 20

約数和(自身を含む): 3546066

約数和(自身を除く): 1524424

約数列:

[1, 2, 7, 14, 49, 98, 343, 421, 686, 842, 2401, 2947, 4802, 5894, 20629, 41258, 144403, 288806, 1010821, 2021642]

約数ペア:

[(1, 2021642), (2, 1010821), (7, 288806), (14, 144403), (49, 41258), (98, 20629), (343, 5894), (421, 4802), (686, 2947), (842, 2401)]