201819978

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{1217}}^1$

素因数の和:1348

約数の個数: 64

約数和(自身を含む): 466542720

約数和(自身を除く): 264722742

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 83, 111, 166, 222, 249, 333, 498, 666, 747, 999, 1217, 1494, 1998, 2241, 2434, 3071, 3651, 4482, 6142, 7302, 9213, 10953, 18426, 21906, 27639, 32859, 45029, 55278, 65718, 82917, 90058, 101011, 135087, 165834, 202022, 270174, 303033, 405261, 606066, 810522, 909099, 1215783, 1818198, 2431566, 2727297, 3737407, 5454594, 7474814, 11212221, 22424442, 33636663, 67273326, 100909989, 201819978]

約数ペア:

[(1, 201819978), (2, 100909989), (3, 67273326), (6, 33636663), (9, 22424442), (18, 11212221), (27, 7474814), (37, 5454594), (54, 3737407), (74, 2727297), (83, 2431566), (111, 1818198), (166, 1215783), (222, 909099), (249, 810522), (333, 606066), (498, 405261), (666, 303033), (747, 270174), (999, 202022), (1217, 165834), (1494, 135087), (1998, 101011), (2241, 90058), (2434, 82917), (3071, 65718), (3651, 55278), (4482, 45029), (6142, 32859), (7302, 27639), (9213, 21906), (10953, 18426)]