28101969

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1430

約数の個数: 48

約数和(自身を含む): 51742080

約数和(自身を除く): 23640111

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 1381, 2261, 2907, 4143, 6783, 9667, 12429, 20349, 23477, 26239, 29001, 70431, 78717, 87003, 164339, 183673, 211293, 236151, 446063, 493017, 551019, 1338189, 1479051, 1653057, 3122441, 4014567, 9367323, 28101969]

約数ペア:

[(1, 28101969), (3, 9367323), (7, 4014567), (9, 3122441), (17, 1653057), (19, 1479051), (21, 1338189), (51, 551019), (57, 493017), (63, 446063), (119, 236151), (133, 211293), (153, 183673), (171, 164339), (323, 87003), (357, 78717), (399, 70431), (969, 29001), (1071, 26239), (1197, 23477), (1381, 20349), (2261, 12429), (2907, 9667), (4143, 6783)]