18021717

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 15155883

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 71, 79, 119, 153, 189, 213, 237, 357, 459, 497, 553, 639, 711, 1071, 1207, 1343, 1491, 1659, 1917, 2133, 3213, 3621, 4029, 4473, 4977, 5609, 8449, 9401, 10863, 12087, 13419, 14931, 16827, 25347, 28203, 32589, 36261, 39263, 50481, 76041, 84609, 95353, 117789, 151443, 228123, 253827, 286059, 353367, 667471, 858177, 1060101, 2002413, 2574531, 6007239, 18021717]

約数ペア:

[(1, 18021717), (3, 6007239), (7, 2574531), (9, 2002413), (17, 1060101), (21, 858177), (27, 667471), (51, 353367), (63, 286059), (71, 253827), (79, 228123), (119, 151443), (153, 117789), (189, 95353), (213, 84609), (237, 76041), (357, 50481), (459, 39263), (497, 36261), (553, 32589), (639, 28203), (711, 25347), (1071, 16827), (1207, 14931), (1343, 13419), (1491, 12087), (1659, 10863), (1917, 9401), (2133, 8449), (3213, 5609), (3621, 4977), (4029, 4473)]