21505732

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{439}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 38857280

約数和(自身を除く): 17351548

約数列:

[1, 2, 4, 37, 74, 148, 331, 439, 662, 878, 1324, 1756, 12247, 16243, 24494, 32486, 48988, 64972, 145309, 290618, 581236, 5376433, 10752866, 21505732]

約数ペア:

[(1, 21505732), (2, 10752866), (4, 5376433), (37, 581236), (74, 290618), (148, 145309), (331, 64972), (439, 48988), (662, 32486), (878, 24494), (1324, 16243), (1756, 12247)]