21596103

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:101

約数の個数: 54

約数和(自身を含む): 36493704

約数和(自身を除く): 14897601

約数列:

[1, 3, 9, 17, 19, 23, 51, 57, 69, 153, 171, 207, 289, 323, 361, 391, 437, 867, 969, 1083, 1173, 1311, 2601, 2907, 3249, 3519, 3933, 5491, 6137, 6647, 7429, 8303, 16473, 18411, 19941, 22287, 24909, 49419, 55233, 59823, 66861, 74727, 104329, 126293, 141151, 312987, 378879, 423453, 938961, 1136637, 1270359, 2399567, 7198701, 21596103]

約数ペア:

[(1, 21596103), (3, 7198701), (9, 2399567), (17, 1270359), (19, 1136637), (23, 938961), (51, 423453), (57, 378879), (69, 312987), (153, 141151), (171, 126293), (207, 104329), (289, 74727), (323, 66861), (361, 59823), (391, 55233), (437, 49419), (867, 24909), (969, 22287), (1083, 19941), (1173, 18411), (1311, 16473), (2601, 8303), (2907, 7429), (3249, 6647), (3519, 6137), (3933, 5491)]