2021121245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{647}}^1$

素因数の和:950

約数の個数: 64

約数和(自身を含む): 3033386496

約数和(自身を除く): 1012265251

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 257, 647, 715, 935, 1105, 1285, 2431, 2827, 3235, 3341, 4369, 7117, 8411, 10999, 12155, 14135, 16705, 21845, 35585, 36751, 42055, 48059, 54995, 56797, 92521, 120989, 142987, 166279, 183755, 240295, 283985, 462605, 604945, 624767, 714935, 831395, 1572857, 1829069, 2161627, 2826743, 3123835, 7864285, 9145345, 10808135, 14133715, 23777897, 31094173, 36747659, 118889485, 155470865, 183738295, 404224249, 2021121245]

約数ペア:

[(1, 2021121245), (5, 404224249), (11, 183738295), (13, 155470865), (17, 118889485), (55, 36747659), (65, 31094173), (85, 23777897), (143, 14133715), (187, 10808135), (221, 9145345), (257, 7864285), (647, 3123835), (715, 2826743), (935, 2161627), (1105, 1829069), (1285, 1572857), (2431, 831395), (2827, 714935), (3235, 624767), (3341, 604945), (4369, 462605), (7117, 283985), (8411, 240295), (10999, 183755), (12155, 166279), (14135, 142987), (16705, 120989), (21845, 92521), (35585, 56797), (36751, 54995), (42055, 48059)]