19873744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112919}}^1$

素因数の和:112938

約数の個数: 20

約数和(自身を含む): 42006240

約数和(自身を除く): 22132496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112919, 225838, 451676, 903352, 1242109, 1806704, 2484218, 4968436, 9936872, 19873744]

約数ペア:

[(1, 19873744), (2, 9936872), (4, 4968436), (8, 2484218), (11, 1806704), (16, 1242109), (22, 903352), (44, 451676), (88, 225838), (176, 112919)]