21488176

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9803}}^1$

素因数の和:9948

約数の個数: 20

約数和(自身を含む): 41941512

約数和(自身を除く): 20453336

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9803, 19606, 39212, 78424, 156848, 1343011, 2686022, 5372044, 10744088, 21488176]

約数ペア:

[(1, 21488176), (2, 10744088), (4, 5372044), (8, 2686022), (16, 1343011), (137, 156848), (274, 78424), (548, 39212), (1096, 19606), (2192, 9803)]