20163308877

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{140207}}^1$

素因数の和:140290

約数の個数: 36

約数和(自身を含む): 31751503680

約数和(自身を除く): 11588194803

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 841, 1653, 2523, 4959, 7569, 15979, 47937, 140207, 143811, 420621, 1261863, 2663933, 4066003, 7991799, 12198009, 23975397, 36594027, 77254057, 117914087, 231762171, 353742261, 695286513, 1061226783, 2240367653, 6721102959, 20163308877]

約数ペア:

[(1, 20163308877), (3, 6721102959), (9, 2240367653), (19, 1061226783), (29, 695286513), (57, 353742261), (87, 231762171), (171, 117914087), (261, 77254057), (551, 36594027), (841, 23975397), (1653, 12198009), (2523, 7991799), (4959, 4066003), (7569, 2663933), (15979, 1261863), (47937, 420621), (140207, 143811)]