20655796

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22889804

約数列:

[1, 2, 4, 7, 14, 28, 31, 53, 62, 106, 124, 212, 217, 371, 434, 449, 742, 868, 898, 1484, 1643, 1796, 3143, 3286, 6286, 6572, 11501, 12572, 13919, 23002, 23797, 27838, 46004, 47594, 55676, 95188, 97433, 166579, 194866, 333158, 389732, 666316, 737707, 1475414, 2950828, 5163949, 10327898, 20655796]

約数ペア:

[(1, 20655796), (2, 10327898), (4, 5163949), (7, 2950828), (14, 1475414), (28, 737707), (31, 666316), (53, 389732), (62, 333158), (106, 194866), (124, 166579), (212, 97433), (217, 95188), (371, 55676), (434, 47594), (449, 46004), (742, 27838), (868, 23797), (898, 23002), (1484, 13919), (1643, 12572), (1796, 11501), (3143, 6572), (3286, 6286)]