18712892

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^2$

素因数の和:131

約数の個数: 54

約数和(自身を含む): 38498712

約数和(自身を除く): 19785820

約数列:

[1, 2, 4, 11, 22, 23, 41, 44, 46, 82, 92, 121, 164, 242, 253, 451, 484, 506, 902, 943, 1012, 1681, 1804, 1886, 2783, 3362, 3772, 4961, 5566, 6724, 9922, 10373, 11132, 18491, 19844, 20746, 36982, 38663, 41492, 73964, 77326, 114103, 154652, 203401, 228206, 406802, 425293, 456412, 813604, 850586, 1701172, 4678223, 9356446, 18712892]

約数ペア:

[(1, 18712892), (2, 9356446), (4, 4678223), (11, 1701172), (22, 850586), (23, 813604), (41, 456412), (44, 425293), (46, 406802), (82, 228206), (92, 203401), (121, 154652), (164, 114103), (242, 77326), (253, 73964), (451, 41492), (484, 38663), (506, 36982), (902, 20746), (943, 19844), (1012, 18491), (1681, 11132), (1804, 10373), (1886, 9922), (2783, 6724), (3362, 5566), (3772, 4961)]