19781434

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{761}}^1$

素因数の和:1121

約数の個数: 16

約数和(自身を含む): 30531816

約数和(自身を除く): 10750382

約数列:

[1, 2, 41, 82, 317, 634, 761, 1522, 12997, 25994, 31201, 62402, 241237, 482474, 9890717, 19781434]

約数ペア:

[(1, 19781434), (2, 9890717), (41, 482474), (82, 241237), (317, 62402), (634, 31201), (761, 25994), (1522, 12997)]