19555184

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111109}}^1$

素因数の和:111128

約数の個数: 20

約数和(自身を含む): 41332920

約数和(自身を除く): 21777736

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111109, 222218, 444436, 888872, 1222199, 1777744, 2444398, 4888796, 9777592, 19555184]

約数ペア:

[(1, 19555184), (2, 9777592), (4, 4888796), (8, 2444398), (11, 1777744), (16, 1222199), (22, 888872), (44, 444436), (88, 222218), (176, 111109)]