21855376

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{29063}}^1$

素因数の和:29118

約数の個数: 20

約数和(自身を含む): 43247232

約数和(自身を除く): 21391856

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 29063, 58126, 116252, 232504, 465008, 1365961, 2731922, 5463844, 10927688, 21855376]

約数ペア:

[(1, 21855376), (2, 10927688), (4, 5463844), (8, 2731922), (16, 1365961), (47, 465008), (94, 232504), (188, 116252), (376, 58126), (752, 29063)]