18031923

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 15836877

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 41, 63, 91, 117, 123, 179, 189, 273, 287, 351, 369, 533, 537, 819, 861, 1107, 1253, 1599, 1611, 2327, 2457, 2583, 3731, 3759, 4797, 4833, 6981, 7339, 7749, 11193, 11277, 14391, 16289, 20943, 22017, 33579, 33831, 48867, 51373, 62829, 66051, 95407, 100737, 146601, 154119, 198153, 286221, 439803, 462357, 667849, 858663, 1387071, 2003547, 2575989, 6010641, 18031923]

約数ペア:

[(1, 18031923), (3, 6010641), (7, 2575989), (9, 2003547), (13, 1387071), (21, 858663), (27, 667849), (39, 462357), (41, 439803), (63, 286221), (91, 198153), (117, 154119), (123, 146601), (179, 100737), (189, 95407), (273, 66051), (287, 62829), (351, 51373), (369, 48867), (533, 33831), (537, 33579), (819, 22017), (861, 20943), (1107, 16289), (1253, 14391), (1599, 11277), (1611, 11193), (2327, 7749), (2457, 7339), (2583, 6981), (3731, 4833), (3759, 4797)]