21229121168

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25034341}}^1$

素因数の和:25034402

約数の個数: 20

約数和(自身を含む): 41907488508

約数和(自身を除く): 20678367340

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25034341, 50068682, 100137364, 200274728, 400549456, 1326820073, 2653640146, 5307280292, 10614560584, 21229121168]

約数ペア:

[(1, 21229121168), (2, 10614560584), (4, 5307280292), (8, 2653640146), (16, 1326820073), (53, 400549456), (106, 200274728), (212, 100137364), (424, 50068682), (848, 25034341)]