217249984

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15643}}^1$

素因数の和:15693

約数の個数: 56

約数和(自身を含む): 508617728

約数和(自身を除く): 291367744

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, 15643, 31286, 62572, 109501, 125144, 219002, 250288, 438004, 484933, 500576, 876008, 969866, 1001152, 1752016, 1939732, 3394531, 3504032, 3879464, 6789062, 7008064, 7758928, 13578124, 15517856, 27156248, 31035712, 54312496, 108624992, 217249984]

約数ペア:

[(1, 217249984), (2, 108624992), (4, 54312496), (7, 31035712), (8, 27156248), (14, 15517856), (16, 13578124), (28, 7758928), (31, 7008064), (32, 6789062), (56, 3879464), (62, 3504032), (64, 3394531), (112, 1939732), (124, 1752016), (217, 1001152), (224, 969866), (248, 876008), (434, 500576), (448, 484933), (496, 438004), (868, 250288), (992, 219002), (1736, 125144), (1984, 109501), (3472, 62572), (6944, 31286), (13888, 15643)]