21653410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127373}}^1$

素因数の和:127397

約数の個数: 16

約数和(自身を含む): 41269176

約数和(自身を除く): 19615766

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127373, 254746, 636865, 1273730, 2165341, 4330682, 10826705, 21653410]

約数ペア:

[(1, 21653410), (2, 10826705), (5, 4330682), (10, 2165341), (17, 1273730), (34, 636865), (85, 254746), (170, 127373)]