20995254

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{829}}^1$

素因数の和:914

約数の個数: 64

約数和(自身を含む): 54182400

約数和(自身を除く): 33187146

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 67, 126, 134, 189, 201, 378, 402, 469, 603, 829, 938, 1206, 1407, 1658, 1809, 2487, 2814, 3618, 4221, 4974, 5803, 7461, 8442, 11606, 12663, 14922, 17409, 22383, 25326, 34818, 44766, 52227, 55543, 104454, 111086, 156681, 166629, 313362, 333258, 388801, 499887, 777602, 999774, 1166403, 1499661, 2332806, 2999322, 3499209, 6998418, 10497627, 20995254]

約数ペア:

[(1, 20995254), (2, 10497627), (3, 6998418), (6, 3499209), (7, 2999322), (9, 2332806), (14, 1499661), (18, 1166403), (21, 999774), (27, 777602), (42, 499887), (54, 388801), (63, 333258), (67, 313362), (126, 166629), (134, 156681), (189, 111086), (201, 104454), (378, 55543), (402, 52227), (469, 44766), (603, 34818), (829, 25326), (938, 22383), (1206, 17409), (1407, 14922), (1658, 12663), (1809, 11606), (2487, 8442), (2814, 7461), (3618, 5803), (4221, 4974)]