2021209911

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{23131}}^1$

素因数の和:23236

約数の個数: 48

約数和(自身を含む): 3560477440

約数和(自身を除く): 1539267529

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 73, 133, 171, 219, 399, 511, 657, 1197, 1387, 1533, 4161, 4599, 9709, 12483, 23131, 29127, 69393, 87381, 161917, 208179, 439489, 485751, 1318467, 1457253, 1688563, 3076423, 3955401, 5065689, 9229269, 11819941, 15197067, 27687807, 32082697, 35459823, 96248091, 106379469, 224578879, 288744273, 673736637, 2021209911]

約数ペア:

[(1, 2021209911), (3, 673736637), (7, 288744273), (9, 224578879), (19, 106379469), (21, 96248091), (57, 35459823), (63, 32082697), (73, 27687807), (133, 15197067), (171, 11819941), (219, 9229269), (399, 5065689), (511, 3955401), (657, 3076423), (1197, 1688563), (1387, 1457253), (1533, 1318467), (4161, 485751), (4599, 439489), (9709, 208179), (12483, 161917), (23131, 87381), (29127, 69393)]