21429639

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 41378688

約数和(自身を除く): 19949049

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 107, 119, 153, 187, 231, 289, 321, 357, 561, 693, 749, 867, 963, 1071, 1177, 1309, 1683, 1819, 2023, 2247, 2601, 3179, 3531, 3927, 5457, 6069, 6741, 8239, 9537, 10593, 11781, 12733, 16371, 18207, 20009, 22253, 24717, 28611, 30923, 38199, 60027, 66759, 74151, 92769, 114597, 140063, 180081, 200277, 216461, 278307, 340153, 420189, 649383, 1020459, 1260567, 1948149, 2381071, 3061377, 7143213, 21429639]

約数ペア:

[(1, 21429639), (3, 7143213), (7, 3061377), (9, 2381071), (11, 1948149), (17, 1260567), (21, 1020459), (33, 649383), (51, 420189), (63, 340153), (77, 278307), (99, 216461), (107, 200277), (119, 180081), (153, 140063), (187, 114597), (231, 92769), (289, 74151), (321, 66759), (357, 60027), (561, 38199), (693, 30923), (749, 28611), (867, 24717), (963, 22253), (1071, 20009), (1177, 18207), (1309, 16371), (1683, 12733), (1819, 11781), (2023, 10593), (2247, 9537), (2601, 8239), (3179, 6741), (3531, 6069), (3927, 5457)]