21281595

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 13796805

約数列:

[1, 3, 5, 15, 59, 139, 173, 177, 295, 417, 519, 695, 865, 885, 2085, 2595, 8201, 10207, 24047, 24603, 30621, 41005, 51035, 72141, 120235, 123015, 153105, 360705, 1418773, 4256319, 7093865, 21281595]

約数ペア:

[(1, 21281595), (3, 7093865), (5, 4256319), (15, 1418773), (59, 360705), (139, 153105), (173, 123015), (177, 120235), (295, 72141), (417, 51035), (519, 41005), (695, 30621), (865, 24603), (885, 24047), (2085, 10207), (2595, 8201)]