21229642

素因数分解:

$2^1\times 7^4\times {\mathrm{4421}}^1$

素因数の和:4451

約数の個数: 20

約数和(自身を含む): 37158066

約数和(自身を除く): 15928424

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4421, 4802, 8842, 30947, 61894, 216629, 433258, 1516403, 3032806, 10614821, 21229642]

約数ペア:

[(1, 21229642), (2, 10614821), (7, 3032806), (14, 1516403), (49, 433258), (98, 216629), (343, 61894), (686, 30947), (2401, 8842), (4421, 4802)]