18402525

素因数分解:

$3^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 34224000

約数和(自身を除く): 15821475

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 137, 199, 225, 411, 597, 675, 685, 995, 1233, 1791, 2055, 2985, 3425, 3699, 4975, 5373, 6165, 8955, 10275, 14925, 18495, 26865, 27263, 30825, 44775, 81789, 92475, 134325, 136315, 245367, 408945, 681575, 736101, 1226835, 2044725, 3680505, 6134175, 18402525]

約数ペア:

[(1, 18402525), (3, 6134175), (5, 3680505), (9, 2044725), (15, 1226835), (25, 736101), (27, 681575), (45, 408945), (75, 245367), (135, 136315), (137, 134325), (199, 92475), (225, 81789), (411, 44775), (597, 30825), (675, 27263), (685, 26865), (995, 18495), (1233, 14925), (1791, 10275), (2055, 8955), (2985, 6165), (3425, 5373), (3699, 4975)]