21521168

素因数分解:

$2^4\times {\mathrm{547}}^1\times {\mathrm{2459}}^1$

素因数の和:3014

約数の個数: 20

約数和(自身を含む): 41790480

約数和(自身を除く): 20269312

約数列:

[1, 2, 4, 8, 16, 547, 1094, 2188, 2459, 4376, 4918, 8752, 9836, 19672, 39344, 1345073, 2690146, 5380292, 10760584, 21521168]

約数ペア:

[(1, 21521168), (2, 10760584), (4, 5380292), (8, 2690146), (16, 1345073), (547, 39344), (1094, 19672), (2188, 9836), (2459, 8752), (4376, 4918)]