21052928

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3163}}^1$

素因数の和:3194

約数の個数: 40

約数和(自身を含む): 45314808

約数和(自身を除く): 24261880

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3163, 3328, 6326, 6656, 12652, 25304, 41119, 50608, 82238, 101216, 164476, 202432, 328952, 404864, 657904, 809728, 1315808, 1619456, 2631616, 5263232, 10526464, 21052928]

約数ペア:

[(1, 21052928), (2, 10526464), (4, 5263232), (8, 2631616), (13, 1619456), (16, 1315808), (26, 809728), (32, 657904), (52, 404864), (64, 328952), (104, 202432), (128, 164476), (208, 101216), (256, 82238), (416, 50608), (512, 41119), (832, 25304), (1664, 12652), (3163, 6656), (3328, 6326)]