208221804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{907}}^1\times {\mathrm{911}}^1$

素因数の和:1835

約数の個数: 72

約数和(自身を含む): 602853888

約数和(自身を除く): 394632084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 907, 911, 1814, 1822, 2721, 2733, 3628, 3644, 5442, 5466, 6349, 6377, 8163, 8199, 10884, 10932, 12698, 12754, 16326, 16398, 19047, 19131, 25396, 25508, 32652, 32796, 38094, 38262, 57141, 57393, 76188, 76524, 114282, 114786, 228564, 229572, 826277, 1652554, 2478831, 3305108, 4957662, 5783939, 7436493, 9915324, 11567878, 14872986, 17351817, 23135756, 29745972, 34703634, 52055451, 69407268, 104110902, 208221804]

約数ペア:

[(1, 208221804), (2, 104110902), (3, 69407268), (4, 52055451), (6, 34703634), (7, 29745972), (9, 23135756), (12, 17351817), (14, 14872986), (18, 11567878), (21, 9915324), (28, 7436493), (36, 5783939), (42, 4957662), (63, 3305108), (84, 2478831), (126, 1652554), (252, 826277), (907, 229572), (911, 228564), (1814, 114786), (1822, 114282), (2721, 76524), (2733, 76188), (3628, 57393), (3644, 57141), (5442, 38262), (5466, 38094), (6349, 32796), (6377, 32652), (8163, 25508), (8199, 25396), (10884, 19131), (10932, 19047), (12698, 16398), (12754, 16326)]