18521776

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12721}}^1$

素因数の和:12749

約数の個数: 40

約数和(自身を含む): 44170784

約数和(自身を除く): 25649008

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12721, 25442, 50884, 89047, 101768, 165373, 178094, 203536, 330746, 356188, 661492, 712376, 1157611, 1322984, 1424752, 2315222, 2645968, 4630444, 9260888, 18521776]

約数ペア:

[(1, 18521776), (2, 9260888), (4, 4630444), (7, 2645968), (8, 2315222), (13, 1424752), (14, 1322984), (16, 1157611), (26, 712376), (28, 661492), (52, 356188), (56, 330746), (91, 203536), (104, 178094), (112, 165373), (182, 101768), (208, 89047), (364, 50884), (728, 25442), (1456, 12721)]