31981274

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39679}}^1$

素因数の和:39725

約数の個数: 16

約数和(自身を含む): 53329920

約数和(自身を除く): 21348646

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 39679, 79358, 515827, 1031654, 1230049, 2460098, 15990637, 31981274]

約数ペア:

[(1, 31981274), (2, 15990637), (13, 2460098), (26, 1230049), (31, 1031654), (62, 515827), (403, 79358), (806, 39679)]