20928726

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4259}}^1$

素因数の和:4290

約数の個数: 64

約数和(自身を含む): 57254400

約数和(自身を除く): 36325674

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4259, 4914, 8518, 12777, 25554, 29813, 38331, 55367, 59626, 76662, 89439, 110734, 114993, 166101, 178878, 229986, 268317, 332202, 387569, 498303, 536634, 775138, 804951, 996606, 1162707, 1494909, 1609902, 2325414, 2989818, 3488121, 6976242, 10464363, 20928726]

約数ペア:

[(1, 20928726), (2, 10464363), (3, 6976242), (6, 3488121), (7, 2989818), (9, 2325414), (13, 1609902), (14, 1494909), (18, 1162707), (21, 996606), (26, 804951), (27, 775138), (39, 536634), (42, 498303), (54, 387569), (63, 332202), (78, 268317), (91, 229986), (117, 178878), (126, 166101), (182, 114993), (189, 110734), (234, 89439), (273, 76662), (351, 59626), (378, 55367), (546, 38331), (702, 29813), (819, 25554), (1638, 12777), (2457, 8518), (4259, 4914)]