20181874479

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{26539}}^1$

素因数の和:26640

約数の個数: 64

約数和(自身を含む): 32530821120

約数和(自身を除く): 12348946641

約数列:

[1, 3, 13, 17, 31, 37, 39, 51, 93, 111, 221, 403, 481, 527, 629, 663, 1147, 1209, 1443, 1581, 1887, 3441, 6851, 8177, 14911, 19499, 20553, 24531, 26539, 44733, 58497, 79617, 253487, 345007, 451163, 760461, 822709, 981943, 1035021, 1353489, 2468127, 2945829, 5865119, 10695217, 12765259, 13986053, 16693031, 17595357, 30440233, 32085651, 38295777, 41958159, 50079093, 91320699, 181818689, 217009403, 395723029, 517483961, 545456067, 651028209, 1187169087, 1552451883, 6727291493, 20181874479]

約数ペア:

[(1, 20181874479), (3, 6727291493), (13, 1552451883), (17, 1187169087), (31, 651028209), (37, 545456067), (39, 517483961), (51, 395723029), (93, 217009403), (111, 181818689), (221, 91320699), (403, 50079093), (481, 41958159), (527, 38295777), (629, 32085651), (663, 30440233), (1147, 17595357), (1209, 16693031), (1443, 13986053), (1581, 12765259), (1887, 10695217), (3441, 5865119), (6851, 2945829), (8177, 2468127), (14911, 1353489), (19499, 1035021), (20553, 981943), (24531, 822709), (26539, 760461), (44733, 451163), (58497, 345007), (79617, 253487)]