21279268

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2417}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 38997504

約数和(自身を除く): 17718236

約数列:

[1, 2, 4, 31, 62, 71, 124, 142, 284, 2201, 2417, 4402, 4834, 8804, 9668, 74927, 149854, 171607, 299708, 343214, 686428, 5319817, 10639634, 21279268]

約数ペア:

[(1, 21279268), (2, 10639634), (4, 5319817), (31, 686428), (62, 343214), (71, 299708), (124, 171607), (142, 149854), (284, 74927), (2201, 9668), (2417, 8804), (4402, 4834)]