20718906

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11549}}^1$

素因数の和:11590

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25850694

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11549, 23098, 34647, 69294, 150137, 265627, 300274, 450411, 531254, 796881, 900822, 1593762, 3453151, 6906302, 10359453, 20718906]

約数ペア:

[(1, 20718906), (2, 10359453), (3, 6906302), (6, 3453151), (13, 1593762), (23, 900822), (26, 796881), (39, 531254), (46, 450411), (69, 300274), (78, 265627), (138, 150137), (299, 69294), (598, 34647), (897, 23098), (1794, 11549)]