19509804

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 51510368

約数和(自身を除く): 32000564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 97, 111, 148, 151, 194, 222, 291, 302, 333, 388, 444, 453, 582, 604, 666, 873, 906, 1164, 1332, 1359, 1746, 1812, 2718, 3492, 3589, 5436, 5587, 7178, 10767, 11174, 14356, 14647, 16761, 21534, 22348, 29294, 32301, 33522, 43068, 43941, 50283, 58588, 64602, 67044, 87882, 100566, 129204, 131823, 175764, 201132, 263646, 527292, 541939, 1083878, 1625817, 2167756, 3251634, 4877451, 6503268, 9754902, 19509804]

約数ペア:

[(1, 19509804), (2, 9754902), (3, 6503268), (4, 4877451), (6, 3251634), (9, 2167756), (12, 1625817), (18, 1083878), (36, 541939), (37, 527292), (74, 263646), (97, 201132), (111, 175764), (148, 131823), (151, 129204), (194, 100566), (222, 87882), (291, 67044), (302, 64602), (333, 58588), (388, 50283), (444, 43941), (453, 43068), (582, 33522), (604, 32301), (666, 29294), (873, 22348), (906, 21534), (1164, 16761), (1332, 14647), (1359, 14356), (1746, 11174), (1812, 10767), (2718, 7178), (3492, 5587), (3589, 5436)]