20391536

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{115861}}^1$

素因数の和:115880

約数の個数: 20

約数和(自身を含む): 43100664

約数和(自身を除く): 22709128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 115861, 231722, 463444, 926888, 1274471, 1853776, 2548942, 5097884, 10195768, 20391536]

約数ペア:

[(1, 20391536), (2, 10195768), (4, 5097884), (8, 2548942), (11, 1853776), (16, 1274471), (22, 926888), (44, 463444), (88, 231722), (176, 115861)]