209780402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{187639}}^1$

素因数の和:187697

約数の個数: 16

約数和(自身を含む): 346758720

約数和(自身を除く): 136978318

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 187639, 375278, 2439307, 4878614, 8068477, 16136954, 104890201, 209780402]

約数ペア:

[(1, 209780402), (2, 104890201), (13, 16136954), (26, 8068477), (43, 4878614), (86, 2439307), (559, 375278), (1118, 187639)]