21052841728

素因数分解:

$2^8\times {\mathrm{2089}}^1\times {\mathrm{39367}}^1$

素因数の和:41472

約数の個数: 36

約数和(自身を含む): 42044630320

約数和(自身を除く): 20991788592

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 2089, 4178, 8356, 16712, 33424, 39367, 66848, 78734, 133696, 157468, 267392, 314936, 534784, 629872, 1259744, 2519488, 5038976, 10077952, 82237663, 164475326, 328950652, 657901304, 1315802608, 2631605216, 5263210432, 10526420864, 21052841728]

約数ペア:

[(1, 21052841728), (2, 10526420864), (4, 5263210432), (8, 2631605216), (16, 1315802608), (32, 657901304), (64, 328950652), (128, 164475326), (256, 82237663), (2089, 10077952), (4178, 5038976), (8356, 2519488), (16712, 1259744), (33424, 629872), (39367, 534784), (66848, 314936), (78734, 267392), (133696, 157468)]