20750337

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 40

約数和(自身を含む): 33202400

約数和(自身を除く): 12452063

約数列:

[1, 3, 9, 19, 27, 57, 81, 97, 139, 171, 291, 417, 513, 873, 1251, 1539, 1843, 2619, 2641, 3753, 5529, 7857, 7923, 11259, 13483, 16587, 23769, 40449, 49761, 71307, 121347, 149283, 213921, 256177, 364041, 768531, 1092123, 2305593, 6916779, 20750337]

約数ペア:

[(1, 20750337), (3, 6916779), (9, 2305593), (19, 1092123), (27, 768531), (57, 364041), (81, 256177), (97, 213921), (139, 149283), (171, 121347), (291, 71307), (417, 49761), (513, 40449), (873, 23769), (1251, 16587), (1539, 13483), (1843, 11259), (2619, 7923), (2641, 7857), (3753, 5529)]