21995312

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72353}}^1$

素因数の和:72380

約数の個数: 20

約数和(自身を含む): 44859480

約数和(自身を除く): 22864168

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72353, 144706, 289412, 578824, 1157648, 1374707, 2749414, 5498828, 10997656, 21995312]

約数ペア:

[(1, 21995312), (2, 10997656), (4, 5498828), (8, 2749414), (16, 1374707), (19, 1157648), (38, 578824), (76, 289412), (152, 144706), (304, 72353)]