20906228

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18211}}^1$

素因数の和:18263

約数の個数: 24

約数和(自身を含む): 42834624

約数和(自身を除く): 21928396

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18211, 36422, 72844, 127477, 254954, 509908, 746651, 1493302, 2986604, 5226557, 10453114, 20906228]

約数ペア:

[(1, 20906228), (2, 10453114), (4, 5226557), (7, 2986604), (14, 1493302), (28, 746651), (41, 509908), (82, 254954), (164, 127477), (287, 72844), (574, 36422), (1148, 18211)]