21640868

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2677}}^1$

素因数の和:2771

約数の個数: 24

約数和(自身を含む): 39591552

約数和(自身を除く): 17950684

約数列:

[1, 2, 4, 43, 47, 86, 94, 172, 188, 2021, 2677, 4042, 5354, 8084, 10708, 115111, 125819, 230222, 251638, 460444, 503276, 5410217, 10820434, 21640868]

約数ペア:

[(1, 21640868), (2, 10820434), (4, 5410217), (43, 503276), (47, 460444), (86, 251638), (94, 230222), (172, 125819), (188, 115111), (2021, 10708), (2677, 8084), (4042, 5354)]