20512019913

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1423}}^1\times {\mathrm{62401}}^1$

素因数の和:63845

約数の個数: 32

約数和(自身を含む): 34122412032

約数和(自身を除く): 13610392119

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 1423, 4269, 9961, 15653, 29883, 46959, 62401, 109571, 187203, 328713, 436807, 686411, 1310421, 2059233, 4804877, 14414631, 88796623, 266389869, 621576361, 976762853, 1864729083, 2930288559, 6837339971, 20512019913]

約数ペア:

[(1, 20512019913), (3, 6837339971), (7, 2930288559), (11, 1864729083), (21, 976762853), (33, 621576361), (77, 266389869), (231, 88796623), (1423, 14414631), (4269, 4804877), (9961, 2059233), (15653, 1310421), (29883, 686411), (46959, 436807), (62401, 328713), (109571, 187203)]