20975747

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 24689952

約数和(自身を除く): 3714205

約数列:

[1, 13, 23, 31, 73, 299, 403, 713, 949, 961, 1679, 2263, 9269, 12493, 21827, 22103, 29419, 52049, 70153, 287339, 676637, 911989, 1613519, 20975747]

約数ペア:

[(1, 20975747), (13, 1613519), (23, 911989), (31, 676637), (73, 287339), (299, 70153), (403, 52049), (713, 29419), (949, 22103), (961, 21827), (1679, 12493), (2263, 9269)]