18274438

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 17852282

約数列:

[1, 2, 7, 13, 14, 26, 31, 41, 62, 79, 82, 91, 158, 182, 217, 287, 403, 434, 533, 553, 574, 806, 1027, 1066, 1106, 1271, 2054, 2449, 2542, 2821, 3239, 3731, 4898, 5642, 6478, 7189, 7462, 8897, 14378, 16523, 17143, 17794, 22673, 31837, 33046, 34286, 42107, 45346, 63674, 84214, 100409, 115661, 200818, 222859, 231322, 294749, 445718, 589498, 702863, 1305317, 1405726, 2610634, 9137219, 18274438]

約数ペア:

[(1, 18274438), (2, 9137219), (7, 2610634), (13, 1405726), (14, 1305317), (26, 702863), (31, 589498), (41, 445718), (62, 294749), (79, 231322), (82, 222859), (91, 200818), (158, 115661), (182, 100409), (217, 84214), (287, 63674), (403, 45346), (434, 42107), (533, 34286), (553, 33046), (574, 31837), (806, 22673), (1027, 17794), (1066, 17143), (1106, 16523), (1271, 14378), (2054, 8897), (2449, 7462), (2542, 7189), (2821, 6478), (3239, 5642), (3731, 4898)]