217638848

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15671}}^1$

素因数の和:15721

約数の個数: 56

約数和(自身を含む): 509528064

約数和(自身を除く): 291889216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1736, 1984, 3472, 6944, 13888, 15671, 31342, 62684, 109697, 125368, 219394, 250736, 438788, 485801, 501472, 877576, 971602, 1002944, 1755152, 1943204, 3400607, 3510304, 3886408, 6801214, 7020608, 7772816, 13602428, 15545632, 27204856, 31091264, 54409712, 108819424, 217638848]

約数ペア:

[(1, 217638848), (2, 108819424), (4, 54409712), (7, 31091264), (8, 27204856), (14, 15545632), (16, 13602428), (28, 7772816), (31, 7020608), (32, 6801214), (56, 3886408), (62, 3510304), (64, 3400607), (112, 1943204), (124, 1755152), (217, 1002944), (224, 971602), (248, 877576), (434, 501472), (448, 485801), (496, 438788), (868, 250736), (992, 219394), (1736, 125368), (1984, 109697), (3472, 62684), (6944, 31342), (13888, 15671)]