21288064

素因数分解:

$2^7\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1033}}^1$

素因数の和:1077

約数の個数: 64

約数和(自身を含む): 50624640

約数和(自身を除く): 29336576

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 64, 92, 112, 128, 161, 184, 224, 322, 368, 448, 644, 736, 896, 1033, 1288, 1472, 2066, 2576, 2944, 4132, 5152, 7231, 8264, 10304, 14462, 16528, 20608, 23759, 28924, 33056, 47518, 57848, 66112, 95036, 115696, 132224, 166313, 190072, 231392, 332626, 380144, 462784, 665252, 760288, 925568, 1330504, 1520576, 2661008, 3041152, 5322016, 10644032, 21288064]

約数ペア:

[(1, 21288064), (2, 10644032), (4, 5322016), (7, 3041152), (8, 2661008), (14, 1520576), (16, 1330504), (23, 925568), (28, 760288), (32, 665252), (46, 462784), (56, 380144), (64, 332626), (92, 231392), (112, 190072), (128, 166313), (161, 132224), (184, 115696), (224, 95036), (322, 66112), (368, 57848), (448, 47518), (644, 33056), (736, 28924), (896, 23759), (1033, 20608), (1288, 16528), (1472, 14462), (2066, 10304), (2576, 8264), (2944, 7231), (4132, 5152)]