20569177321

素因数分解:

$7^4\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{701}}^1$

素因数の和:852

約数の個数: 60

約数和(自身を含む): 26674852932

約数和(自身を除く): 6105675611

約数列:

[1, 7, 11, 49, 77, 101, 121, 343, 539, 701, 707, 847, 1111, 2401, 3773, 4907, 4949, 5929, 7711, 7777, 12221, 26411, 34349, 34643, 41503, 53977, 54439, 70801, 84821, 85547, 240443, 242501, 290521, 377839, 381073, 495607, 593747, 598829, 778811, 1683101, 2644873, 2667511, 3469249, 4156229, 4191803, 5451677, 8566921, 18514111, 24284743, 29093603, 29342621, 38161739, 59968447, 169993201, 203655221, 267132173, 419779129, 1869925211, 2938453903, 20569177321]

約数ペア:

[(1, 20569177321), (7, 2938453903), (11, 1869925211), (49, 419779129), (77, 267132173), (101, 203655221), (121, 169993201), (343, 59968447), (539, 38161739), (701, 29342621), (707, 29093603), (847, 24284743), (1111, 18514111), (2401, 8566921), (3773, 5451677), (4907, 4191803), (4949, 4156229), (5929, 3469249), (7711, 2667511), (7777, 2644873), (12221, 1683101), (26411, 778811), (34349, 598829), (34643, 593747), (41503, 495607), (53977, 381073), (54439, 377839), (70801, 290521), (84821, 242501), (85547, 240443)]