21045404

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3947}}^1$

素因数の和:4025

約数の個数: 24

約数和(自身を含む): 38911488

約数和(自身を除く): 17866084

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 172, 1333, 2666, 3947, 5332, 7894, 15788, 122357, 169721, 244714, 339442, 489428, 678884, 5261351, 10522702, 21045404]

約数ペア:

[(1, 21045404), (2, 10522702), (4, 5261351), (31, 678884), (43, 489428), (62, 339442), (86, 244714), (124, 169721), (172, 122357), (1333, 15788), (2666, 7894), (3947, 5332)]