18547984

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12739}}^1$

素因数の和:12767

約数の個数: 40

約数和(自身を含む): 44233280

約数和(自身を除く): 25685296

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12739, 25478, 50956, 89173, 101912, 165607, 178346, 203824, 331214, 356692, 662428, 713384, 1159249, 1324856, 1426768, 2318498, 2649712, 4636996, 9273992, 18547984]

約数ペア:

[(1, 18547984), (2, 9273992), (4, 4636996), (7, 2649712), (8, 2318498), (13, 1426768), (14, 1324856), (16, 1159249), (26, 713384), (28, 662428), (52, 356692), (56, 331214), (91, 203824), (104, 178346), (112, 165607), (182, 101912), (208, 89173), (364, 50956), (728, 25478), (1456, 12739)]