209426145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{2803}}^1$

素因数の和:3121

約数の個数: 32

約数和(自身を含む): 356130432

約数和(自身を除く): 146704287

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 293, 879, 1465, 2803, 4395, 4981, 8409, 14015, 14943, 24905, 42045, 47651, 74715, 142953, 238255, 714765, 821279, 2463837, 4106395, 12319185, 13961743, 41885229, 69808715, 209426145]

約数ペア:

[(1, 209426145), (3, 69808715), (5, 41885229), (15, 13961743), (17, 12319185), (51, 4106395), (85, 2463837), (255, 821279), (293, 714765), (879, 238255), (1465, 142953), (2803, 74715), (4395, 47651), (4981, 42045), (8409, 24905), (14015, 14943)]