20816502

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1129}}^1$

素因数の和:1580

約数の個数: 32

約数和(自身を含む): 47731200

約数和(自身を除く): 26914698

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 439, 878, 1129, 1317, 2258, 2634, 3073, 3387, 6146, 6774, 7903, 9219, 15806, 18438, 23709, 47418, 495631, 991262, 1486893, 2973786, 3469417, 6938834, 10408251, 20816502]

約数ペア:

[(1, 20816502), (2, 10408251), (3, 6938834), (6, 3469417), (7, 2973786), (14, 1486893), (21, 991262), (42, 495631), (439, 47418), (878, 23709), (1129, 18438), (1317, 15806), (2258, 9219), (2634, 7903), (3073, 6774), (3387, 6146)]