21151568

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{35729}}^1$

素因数の和:35774

約数の個数: 20

約数和(自身を含む): 42089940

約数和(自身を除く): 20938372

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 35729, 71458, 142916, 285832, 571664, 1321973, 2643946, 5287892, 10575784, 21151568]

約数ペア:

[(1, 21151568), (2, 10575784), (4, 5287892), (8, 2643946), (16, 1321973), (37, 571664), (74, 285832), (148, 142916), (296, 71458), (592, 35729)]