19685589

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2801

約数の個数: 32

約数和(自身を含む): 33792000

約数和(自身を除く): 14106411

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2749, 7161, 8247, 19243, 30239, 57729, 85219, 90717, 211673, 255657, 596533, 635019, 937409, 1789599, 2812227, 6561863, 19685589]

約数ペア:

[(1, 19685589), (3, 6561863), (7, 2812227), (11, 1789599), (21, 937409), (31, 635019), (33, 596533), (77, 255657), (93, 211673), (217, 90717), (231, 85219), (341, 57729), (651, 30239), (1023, 19243), (2387, 8247), (2749, 7161)]