18254313

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 34572096

約数和(自身を除く): 16317783

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 53, 63, 71, 77, 99, 147, 159, 213, 231, 371, 441, 477, 497, 539, 583, 639, 693, 781, 1113, 1491, 1617, 1749, 2343, 2597, 3339, 3479, 3763, 4081, 4473, 4851, 5247, 5467, 7029, 7791, 10437, 11289, 12243, 16401, 23373, 26341, 28567, 31311, 33867, 36729, 38269, 41393, 49203, 79023, 85701, 114807, 124179, 184387, 237069, 257103, 289751, 344421, 372537, 553161, 869253, 1659483, 2028257, 2607759, 6084771, 18254313]

約数ペア:

[(1, 18254313), (3, 6084771), (7, 2607759), (9, 2028257), (11, 1659483), (21, 869253), (33, 553161), (49, 372537), (53, 344421), (63, 289751), (71, 257103), (77, 237069), (99, 184387), (147, 124179), (159, 114807), (213, 85701), (231, 79023), (371, 49203), (441, 41393), (477, 38269), (497, 36729), (539, 33867), (583, 31311), (639, 28567), (693, 26341), (781, 23373), (1113, 16401), (1491, 12243), (1617, 11289), (1749, 10437), (2343, 7791), (2597, 7029), (3339, 5467), (3479, 5247), (3763, 4851), (4081, 4473)]