21983888

素因数分解:

$2^4\times {\mathrm{1129}}^1\times {\mathrm{1217}}^1$

素因数の和:2354

約数の個数: 20

約数和(自身を含む): 42666540

約数和(自身を除く): 20682652

約数列:

[1, 2, 4, 8, 16, 1129, 1217, 2258, 2434, 4516, 4868, 9032, 9736, 18064, 19472, 1373993, 2747986, 5495972, 10991944, 21983888]

約数ペア:

[(1, 21983888), (2, 10991944), (4, 5495972), (8, 2747986), (16, 1373993), (1129, 19472), (1217, 18064), (2258, 9736), (2434, 9032), (4516, 4868)]