18671492

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 39567360

約数和(自身を除く): 20895868

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 79, 92, 158, 161, 316, 322, 367, 553, 644, 734, 1106, 1468, 1817, 2212, 2569, 3634, 5138, 7268, 8441, 10276, 12719, 16882, 25438, 28993, 33764, 50876, 57986, 59087, 115972, 118174, 202951, 236348, 405902, 666839, 811804, 1333678, 2667356, 4667873, 9335746, 18671492]

約数ペア:

[(1, 18671492), (2, 9335746), (4, 4667873), (7, 2667356), (14, 1333678), (23, 811804), (28, 666839), (46, 405902), (79, 236348), (92, 202951), (158, 118174), (161, 115972), (316, 59087), (322, 57986), (367, 50876), (553, 33764), (644, 28993), (734, 25438), (1106, 16882), (1468, 12719), (1817, 10276), (2212, 8441), (2569, 7268), (3634, 5138)]