16821441

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 33546240

約数和(自身を除く): 16724799

約数列:

[1, 3, 7, 9, 13, 19, 21, 23, 39, 47, 57, 63, 69, 91, 117, 133, 141, 161, 171, 207, 247, 273, 299, 329, 399, 423, 437, 483, 611, 741, 819, 893, 897, 987, 1081, 1197, 1311, 1449, 1729, 1833, 2093, 2223, 2679, 2691, 2961, 3059, 3243, 3933, 4277, 5187, 5499, 5681, 6251, 6279, 7567, 8037, 9177, 9729, 11609, 12831, 14053, 15561, 17043, 18753, 18837, 20539, 22701, 27531, 34827, 38493, 39767, 42159, 51129, 56259, 61617, 68103, 81263, 98371, 104481, 119301, 126477, 143773, 184851, 243789, 267007, 295113, 357903, 431319, 731367, 801021, 885339, 1293957, 1869049, 2403063, 5607147, 16821441]

約数ペア:

[(1, 16821441), (3, 5607147), (7, 2403063), (9, 1869049), (13, 1293957), (19, 885339), (21, 801021), (23, 731367), (39, 431319), (47, 357903), (57, 295113), (63, 267007), (69, 243789), (91, 184851), (117, 143773), (133, 126477), (141, 119301), (161, 104481), (171, 98371), (207, 81263), (247, 68103), (273, 61617), (299, 56259), (329, 51129), (399, 42159), (423, 39767), (437, 38493), (483, 34827), (611, 27531), (741, 22701), (819, 20539), (893, 18837), (897, 18753), (987, 17043), (1081, 15561), (1197, 14053), (1311, 12831), (1449, 11609), (1729, 9729), (1833, 9177), (2093, 8037), (2223, 7567), (2679, 6279), (2691, 6251), (2961, 5681), (3059, 5499), (3243, 5187), (3933, 4277)]