19280865

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 32006016

約数和(自身を除く): 12725151

約数列:

[1, 3, 5, 15, 41, 107, 123, 205, 293, 321, 535, 615, 879, 1465, 1605, 4387, 4395, 12013, 13161, 21935, 31351, 36039, 60065, 65805, 94053, 156755, 180195, 470265, 1285391, 3856173, 6426955, 19280865]

約数ペア:

[(1, 19280865), (3, 6426955), (5, 3856173), (15, 1285391), (41, 470265), (107, 180195), (123, 156755), (205, 94053), (293, 65805), (321, 60065), (535, 36039), (615, 31351), (879, 21935), (1465, 13161), (1605, 12013), (4387, 4395)]