19977754

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 33747840

約数和(自身を除く): 13770086

約数列:

[1, 2, 17, 23, 34, 46, 59, 118, 391, 433, 782, 866, 1003, 1357, 2006, 2714, 7361, 9959, 14722, 19918, 23069, 25547, 46138, 51094, 169303, 338606, 434299, 587581, 868598, 1175162, 9988877, 19977754]

約数ペア:

[(1, 19977754), (2, 9988877), (17, 1175162), (23, 868598), (34, 587581), (46, 434299), (59, 338606), (118, 169303), (391, 51094), (433, 46138), (782, 25547), (866, 23069), (1003, 19918), (1357, 14722), (2006, 9959), (2714, 7361)]