16980496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{81637}}^1$

素因数の和:81658

約数の個数: 20

約数和(自身を含む): 35430892

約数和(自身を除く): 18450396

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 81637, 163274, 326548, 653096, 1061281, 1306192, 2122562, 4245124, 8490248, 16980496]

約数ペア:

[(1, 16980496), (2, 8490248), (4, 4245124), (8, 2122562), (13, 1306192), (16, 1061281), (26, 653096), (52, 326548), (104, 163274), (208, 81637)]