21775208

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4273}}^1$

素因数の和:4306

約数の個数: 48

約数和(自身を含む): 51159780

約数和(自身を除く): 29384572

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4273, 5096, 8546, 17092, 29911, 34184, 55549, 59822, 111098, 119644, 209377, 222196, 239288, 388843, 418754, 444392, 777686, 837508, 1555372, 1675016, 2721901, 3110744, 5443802, 10887604, 21775208]

約数ペア:

[(1, 21775208), (2, 10887604), (4, 5443802), (7, 3110744), (8, 2721901), (13, 1675016), (14, 1555372), (26, 837508), (28, 777686), (49, 444392), (52, 418754), (56, 388843), (91, 239288), (98, 222196), (104, 209377), (182, 119644), (196, 111098), (364, 59822), (392, 55549), (637, 34184), (728, 29911), (1274, 17092), (2548, 8546), (4273, 5096)]