21982417

素因数分解:

${\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 23443200

約数和(自身を除く): 1460783

約数列:

[1, 43, 47, 73, 149, 2021, 3139, 3431, 6407, 7003, 10877, 147533, 301129, 467711, 511219, 21982417]

約数ペア:

[(1, 21982417), (43, 511219), (47, 467711), (73, 301129), (149, 147533), (2021, 10877), (3139, 7003), (3431, 6407)]