21872722179

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{108961}}^1$

素因数の和:109072

約数の個数: 48

約数和(自身を含む): 37099381760

約数和(自身を除く): 15226659581

約数列:

[1, 3, 7, 11, 21, 33, 77, 79, 121, 231, 237, 363, 553, 847, 869, 1659, 2541, 2607, 6083, 9559, 18249, 28677, 66913, 108961, 200739, 326883, 762727, 1198571, 2288181, 3595713, 8389997, 8607919, 13184281, 25169991, 25823757, 39552843, 60255433, 92289967, 94687109, 180766299, 276869901, 284061327, 662809763, 1041558199, 1988429289, 3124674597, 7290907393, 21872722179]

約数ペア:

[(1, 21872722179), (3, 7290907393), (7, 3124674597), (11, 1988429289), (21, 1041558199), (33, 662809763), (77, 284061327), (79, 276869901), (121, 180766299), (231, 94687109), (237, 92289967), (363, 60255433), (553, 39552843), (847, 25823757), (869, 25169991), (1659, 13184281), (2541, 8607919), (2607, 8389997), (6083, 3595713), (9559, 2288181), (18249, 1198571), (28677, 762727), (66913, 326883), (108961, 200739)]