20394416

素因数分解:

$2^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{863}}^1$

素因数の和:1089

約数の個数: 40

約数和(自身を含む): 45425664

約数和(自身を除く): 25031248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 211, 422, 844, 863, 1477, 1688, 1726, 2954, 3376, 3452, 5908, 6041, 6904, 11816, 12082, 13808, 23632, 24164, 48328, 96656, 182093, 364186, 728372, 1274651, 1456744, 2549302, 2913488, 5098604, 10197208, 20394416]

約数ペア:

[(1, 20394416), (2, 10197208), (4, 5098604), (7, 2913488), (8, 2549302), (14, 1456744), (16, 1274651), (28, 728372), (56, 364186), (112, 182093), (211, 96656), (422, 48328), (844, 24164), (863, 23632), (1477, 13808), (1688, 12082), (1726, 11816), (2954, 6904), (3376, 6041), (3452, 5908)]