21993728

素因数分解:

$2^8\times {\mathrm{53}}^1\times {\mathrm{1621}}^1$

素因数の和:1690

約数の個数: 36

約数和(自身を含む): 44757468

約数和(自身を除く): 22763740

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 256, 424, 848, 1621, 1696, 3242, 3392, 6484, 6784, 12968, 13568, 25936, 51872, 85913, 103744, 171826, 207488, 343652, 414976, 687304, 1374608, 2749216, 5498432, 10996864, 21993728]

約数ペア:

[(1, 21993728), (2, 10996864), (4, 5498432), (8, 2749216), (16, 1374608), (32, 687304), (53, 414976), (64, 343652), (106, 207488), (128, 171826), (212, 103744), (256, 85913), (424, 51872), (848, 25936), (1621, 13568), (1696, 12968), (3242, 6784), (3392, 6484)]