26980317

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 50176000

約数和(自身を除く): 23195683

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 79, 91, 117, 139, 189, 237, 273, 351, 417, 553, 711, 819, 973, 1027, 1251, 1659, 1807, 2133, 2457, 2919, 3081, 3753, 4977, 5421, 7189, 8757, 9243, 10981, 12649, 14931, 16263, 21567, 26271, 27729, 32943, 37947, 48789, 64701, 76867, 98829, 113841, 142753, 194103, 230601, 296487, 341523, 428259, 691803, 999271, 1284777, 2075409, 2997813, 3854331, 8993439, 26980317]

約数ペア:

[(1, 26980317), (3, 8993439), (7, 3854331), (9, 2997813), (13, 2075409), (21, 1284777), (27, 999271), (39, 691803), (63, 428259), (79, 341523), (91, 296487), (117, 230601), (139, 194103), (189, 142753), (237, 113841), (273, 98829), (351, 76867), (417, 64701), (553, 48789), (711, 37947), (819, 32943), (973, 27729), (1027, 26271), (1251, 21567), (1659, 16263), (1807, 14931), (2133, 12649), (2457, 10981), (2919, 9243), (3081, 8757), (3753, 7189), (4977, 5421)]