18442665

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 33875712

約数和(自身を除く): 15433047

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 103, 115, 173, 207, 309, 345, 515, 519, 865, 927, 1035, 1545, 1557, 2369, 2595, 3979, 4635, 7107, 7785, 11845, 11937, 17819, 19895, 21321, 35535, 35811, 53457, 59685, 89095, 106605, 160371, 179055, 267285, 409837, 801855, 1229511, 2049185, 3688533, 6147555, 18442665]

約数ペア:

[(1, 18442665), (3, 6147555), (5, 3688533), (9, 2049185), (15, 1229511), (23, 801855), (45, 409837), (69, 267285), (103, 179055), (115, 160371), (173, 106605), (207, 89095), (309, 59685), (345, 53457), (515, 35811), (519, 35535), (865, 21321), (927, 19895), (1035, 17819), (1545, 11937), (1557, 11845), (2369, 7785), (2595, 7107), (3979, 4635)]