20862783

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 33386496

約数和(自身を除く): 12523713

約数列:

[1, 3, 9, 31, 37, 43, 47, 93, 111, 129, 141, 279, 333, 387, 423, 1147, 1333, 1457, 1591, 1739, 2021, 3441, 3999, 4371, 4773, 5217, 6063, 10323, 11997, 13113, 14319, 15651, 18189, 49321, 53909, 62651, 74777, 147963, 161727, 187953, 224331, 443889, 485181, 563859, 672993, 2318087, 6954261, 20862783]

約数ペア:

[(1, 20862783), (3, 6954261), (9, 2318087), (31, 672993), (37, 563859), (43, 485181), (47, 443889), (93, 224331), (111, 187953), (129, 161727), (141, 147963), (279, 74777), (333, 62651), (387, 53909), (423, 49321), (1147, 18189), (1333, 15651), (1457, 14319), (1591, 13113), (1739, 11997), (2021, 10323), (3441, 6063), (3999, 5217), (4371, 4773)]