21319938

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{193}}^1$

素因数の和:256

約数の個数: 72

約数和(自身を含む): 51887628

約数和(自身を除く): 30567690

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 34, 38, 51, 57, 102, 114, 153, 171, 193, 306, 323, 342, 361, 386, 579, 646, 722, 969, 1083, 1158, 1737, 1938, 2166, 2907, 3249, 3281, 3474, 3667, 5814, 6137, 6498, 6562, 7334, 9843, 11001, 12274, 18411, 19686, 22002, 29529, 33003, 36822, 55233, 59058, 62339, 66006, 69673, 110466, 124678, 139346, 187017, 209019, 374034, 418038, 561051, 627057, 1122102, 1184441, 1254114, 2368882, 3553323, 7106646, 10659969, 21319938]

約数ペア:

[(1, 21319938), (2, 10659969), (3, 7106646), (6, 3553323), (9, 2368882), (17, 1254114), (18, 1184441), (19, 1122102), (34, 627057), (38, 561051), (51, 418038), (57, 374034), (102, 209019), (114, 187017), (153, 139346), (171, 124678), (193, 110466), (306, 69673), (323, 66006), (342, 62339), (361, 59058), (386, 55233), (579, 36822), (646, 33003), (722, 29529), (969, 22002), (1083, 19686), (1158, 18411), (1737, 12274), (1938, 11001), (2166, 9843), (2907, 7334), (3249, 6562), (3281, 6498), (3474, 6137), (3667, 5814)]