66881619

素因数分解:

$3^5\times 7^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 120255408

約数和(自身を除く): 53373789

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 81, 123, 137, 147, 189, 243, 287, 369, 411, 441, 567, 861, 959, 1107, 1233, 1323, 1701, 2009, 2583, 2877, 3321, 3699, 3969, 5617, 6027, 6713, 7749, 8631, 9963, 11097, 11907, 16851, 18081, 20139, 23247, 25893, 33291, 39319, 50553, 54243, 60417, 69741, 77679, 117957, 151659, 162729, 181251, 233037, 275233, 353871, 454977, 488187, 543753, 825699, 1061613, 1364931, 1631259, 2477097, 3184839, 7431291, 9554517, 22293873, 66881619]

約数ペア:

[(1, 66881619), (3, 22293873), (7, 9554517), (9, 7431291), (21, 3184839), (27, 2477097), (41, 1631259), (49, 1364931), (63, 1061613), (81, 825699), (123, 543753), (137, 488187), (147, 454977), (189, 353871), (243, 275233), (287, 233037), (369, 181251), (411, 162729), (441, 151659), (567, 117957), (861, 77679), (959, 69741), (1107, 60417), (1233, 54243), (1323, 50553), (1701, 39319), (2009, 33291), (2583, 25893), (2877, 23247), (3321, 20139), (3699, 18081), (3969, 16851), (5617, 11907), (6027, 11097), (6713, 9963), (7749, 8631)]