20171917171

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1\times {\mathrm{1187}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 25976941056

約数和(自身を除く): 5805023885

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 887, 1127, 1187, 2737, 6209, 8309, 15079, 19159, 20179, 20401, 27301, 43463, 58163, 105553, 141253, 142807, 191107, 346817, 464117, 738871, 988771, 999649, 1052869, 1337749, 2427719, 3248819, 7370083, 16994033, 17898773, 22741733, 24215987, 51590581, 125291411, 169511909, 411671779, 877039877, 1186583363, 2881702453, 20171917171]

約数ペア:

[(1, 20171917171), (7, 2881702453), (17, 1186583363), (23, 877039877), (49, 411671779), (119, 169511909), (161, 125291411), (391, 51590581), (833, 24215987), (887, 22741733), (1127, 17898773), (1187, 16994033), (2737, 7370083), (6209, 3248819), (8309, 2427719), (15079, 1337749), (19159, 1052869), (20179, 999649), (20401, 988771), (27301, 738871), (43463, 464117), (58163, 346817), (105553, 191107), (141253, 142807)]