21897132356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1222757}}^1$

素因数の和:1222820

約数の個数: 36

約数和(自身を含む): 43258732524

約数和(自身を除く): 21361600168

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 121, 148, 242, 407, 484, 814, 1628, 4477, 8954, 17908, 1222757, 2445514, 4891028, 13450327, 26900654, 45242009, 53801308, 90484018, 147953597, 180968036, 295907194, 497662099, 591814388, 995324198, 1990648396, 5474283089, 10948566178, 21897132356]

約数ペア:

[(1, 21897132356), (2, 10948566178), (4, 5474283089), (11, 1990648396), (22, 995324198), (37, 591814388), (44, 497662099), (74, 295907194), (121, 180968036), (148, 147953597), (242, 90484018), (407, 53801308), (484, 45242009), (814, 26900654), (1628, 13450327), (4477, 4891028), (8954, 2445514), (17908, 1222757)]