21033369

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 16706151

約数列:

[1, 3, 7, 9, 17, 21, 41, 51, 63, 119, 123, 153, 287, 357, 369, 479, 697, 861, 1071, 1437, 2091, 2583, 3353, 4311, 4879, 6273, 8143, 10059, 14637, 19639, 24429, 30177, 43911, 57001, 58917, 73287, 137473, 171003, 176751, 333863, 412419, 513009, 1001589, 1237257, 2337041, 3004767, 7011123, 21033369]

約数ペア:

[(1, 21033369), (3, 7011123), (7, 3004767), (9, 2337041), (17, 1237257), (21, 1001589), (41, 513009), (51, 412419), (63, 333863), (119, 176751), (123, 171003), (153, 137473), (287, 73287), (357, 58917), (369, 57001), (479, 43911), (697, 30177), (861, 24429), (1071, 19639), (1437, 14637), (2091, 10059), (2583, 8143), (3353, 6273), (4311, 4879)]