21347584

素因数分解:

$2^8\times {\mathrm{83389}}^1$

素因数の和:83405

約数の個数: 18

約数和(自身を含む): 42612290

約数和(自身を除く): 21264706

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 83389, 166778, 333556, 667112, 1334224, 2668448, 5336896, 10673792, 21347584]

約数ペア:

[(1, 21347584), (2, 10673792), (4, 5336896), (8, 2668448), (16, 1334224), (32, 667112), (64, 333556), (128, 166778), (256, 83389)]