20745178

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1\times {\mathrm{521}}^1$

素因数の和:1029

約数の個数: 16

約数和(自身を含む): 31971456

約数和(自身を除く): 11226278

約数列:

[1, 2, 43, 86, 463, 521, 926, 1042, 19909, 22403, 39818, 44806, 241223, 482446, 10372589, 20745178]

約数ペア:

[(1, 20745178), (2, 10372589), (43, 482446), (86, 241223), (463, 44806), (521, 39818), (926, 22403), (1042, 19909)]