21783177

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 14908023

約数列:

[1, 3, 9, 13, 19, 39, 41, 57, 117, 123, 171, 239, 247, 369, 533, 717, 741, 779, 1599, 2151, 2223, 2337, 3107, 4541, 4797, 7011, 9321, 9799, 10127, 13623, 27963, 29397, 30381, 40869, 59033, 88191, 91143, 127387, 177099, 186181, 382161, 531297, 558543, 1146483, 1675629, 2420353, 7261059, 21783177]

約数ペア:

[(1, 21783177), (3, 7261059), (9, 2420353), (13, 1675629), (19, 1146483), (39, 558543), (41, 531297), (57, 382161), (117, 186181), (123, 177099), (171, 127387), (239, 91143), (247, 88191), (369, 59033), (533, 40869), (717, 30381), (741, 29397), (779, 27963), (1599, 13623), (2151, 10127), (2223, 9799), (2337, 9321), (3107, 7011), (4541, 4797)]