18686772

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{39929}}^1$

素因数の和:39952

約数の個数: 36

約数和(自身を含む): 50870820

約数和(自身を除く): 32184048

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 39929, 79858, 119787, 159716, 239574, 359361, 479148, 519077, 718722, 1038154, 1437444, 1557231, 2076308, 3114462, 4671693, 6228924, 9343386, 18686772]

約数ペア:

[(1, 18686772), (2, 9343386), (3, 6228924), (4, 4671693), (6, 3114462), (9, 2076308), (12, 1557231), (13, 1437444), (18, 1038154), (26, 718722), (36, 519077), (39, 479148), (52, 359361), (78, 239574), (117, 159716), (156, 119787), (234, 79858), (468, 39929)]