20772873

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 34572096

約数和(自身を除く): 13799223

約数列:

[1, 3, 9, 11, 33, 37, 53, 99, 107, 111, 159, 321, 333, 407, 477, 583, 963, 1177, 1221, 1749, 1961, 3531, 3663, 3959, 5247, 5671, 5883, 10593, 11877, 17013, 17649, 21571, 35631, 43549, 51039, 62381, 64713, 130647, 187143, 194139, 209827, 391941, 561429, 629481, 1888443, 2308097, 6924291, 20772873]

約数ペア:

[(1, 20772873), (3, 6924291), (9, 2308097), (11, 1888443), (33, 629481), (37, 561429), (53, 391941), (99, 209827), (107, 194139), (111, 187143), (159, 130647), (321, 64713), (333, 62381), (407, 51039), (477, 43549), (583, 35631), (963, 21571), (1177, 17649), (1221, 17013), (1749, 11877), (1961, 10593), (3531, 5883), (3663, 5671), (3959, 5247)]