21133550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 44434656

約数和(自身を除く): 23301106

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 47, 50, 85, 94, 115, 170, 230, 235, 391, 425, 470, 529, 575, 782, 799, 850, 1058, 1081, 1150, 1175, 1598, 1955, 2162, 2350, 2645, 3910, 3995, 5290, 5405, 7990, 8993, 9775, 10810, 13225, 17986, 18377, 19550, 19975, 24863, 26450, 27025, 36754, 39950, 44965, 49726, 54050, 89930, 91885, 124315, 183770, 224825, 248630, 422671, 449650, 459425, 621575, 845342, 918850, 1243150, 2113355, 4226710, 10566775, 21133550]

約数ペア:

[(1, 21133550), (2, 10566775), (5, 4226710), (10, 2113355), (17, 1243150), (23, 918850), (25, 845342), (34, 621575), (46, 459425), (47, 449650), (50, 422671), (85, 248630), (94, 224825), (115, 183770), (170, 124315), (230, 91885), (235, 89930), (391, 54050), (425, 49726), (470, 44965), (529, 39950), (575, 36754), (782, 27025), (799, 26450), (850, 24863), (1058, 19975), (1081, 19550), (1150, 18377), (1175, 17986), (1598, 13225), (1955, 10810), (2162, 9775), (2350, 8993), (2645, 7990), (3910, 5405), (3995, 5290)]