18564728

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3643}}^1$

素因数の和:3676

約数の個数: 48

約数和(自身を含む): 43618680

約数和(自身を除く): 25053952

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 3643, 5096, 7286, 14572, 25501, 29144, 47359, 51002, 94718, 102004, 178507, 189436, 204008, 331513, 357014, 378872, 663026, 714028, 1326052, 1428056, 2320591, 2652104, 4641182, 9282364, 18564728]

約数ペア:

[(1, 18564728), (2, 9282364), (4, 4641182), (7, 2652104), (8, 2320591), (13, 1428056), (14, 1326052), (26, 714028), (28, 663026), (49, 378872), (52, 357014), (56, 331513), (91, 204008), (98, 189436), (104, 178507), (182, 102004), (196, 94718), (364, 51002), (392, 47359), (637, 29144), (728, 25501), (1274, 14572), (2548, 7286), (3643, 5096)]