21145088

素因数分解:

$2^9\times {\mathrm{41299}}^1$

素因数の和:41317

約数の個数: 20

約数和(自身を含む): 42249900

約数和(自身を除く): 21104812

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41299, 82598, 165196, 330392, 660784, 1321568, 2643136, 5286272, 10572544, 21145088]

約数ペア:

[(1, 21145088), (2, 10572544), (4, 5286272), (8, 2643136), (16, 1321568), (32, 660784), (64, 330392), (128, 165196), (256, 82598), (512, 41299)]