20486791871

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{1063}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 26741299200

約数和(自身を除く): 6254507329

約数列:

[1, 7, 13, 29, 67, 91, 109, 203, 377, 469, 763, 871, 1063, 1417, 1943, 2639, 3161, 6097, 7303, 7441, 9919, 13601, 13819, 22127, 25259, 30827, 41093, 51121, 71221, 94939, 96733, 115867, 176813, 211787, 215789, 287651, 400751, 498547, 664573, 811069, 925873, 1482509, 1506271, 2065409, 2753231, 2805257, 3360143, 6481111, 7763089, 10543897, 14457863, 19272617, 23521001, 26850317, 43681859, 54341623, 100920157, 187952219, 225129581, 305773013, 706441099, 1575907067, 2926684553, 20486791871]

約数ペア:

[(1, 20486791871), (7, 2926684553), (13, 1575907067), (29, 706441099), (67, 305773013), (91, 225129581), (109, 187952219), (203, 100920157), (377, 54341623), (469, 43681859), (763, 26850317), (871, 23521001), (1063, 19272617), (1417, 14457863), (1943, 10543897), (2639, 7763089), (3161, 6481111), (6097, 3360143), (7303, 2805257), (7441, 2753231), (9919, 2065409), (13601, 1506271), (13819, 1482509), (22127, 925873), (25259, 811069), (30827, 664573), (41093, 498547), (51121, 400751), (71221, 287651), (94939, 215789), (96733, 211787), (115867, 176813)]