20588516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{1249}}^1$

素因数の和:1583

約数の個数: 24

約数和(自身を含む): 38955000

約数和(自身を除く): 18366484

約数列:

[1, 2, 4, 13, 26, 52, 317, 634, 1249, 1268, 2498, 4121, 4996, 8242, 16237, 16484, 32474, 64948, 395933, 791866, 1583732, 5147129, 10294258, 20588516]

約数ペア:

[(1, 20588516), (2, 10294258), (4, 5147129), (13, 1583732), (26, 791866), (52, 395933), (317, 64948), (634, 32474), (1249, 16484), (1268, 16237), (2498, 8242), (4121, 4996)]