21771410

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53101}}^1$

素因数の和:53149

約数の個数: 16

約数和(自身を含む): 40145112

約数和(自身を除く): 18373702

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53101, 106202, 265505, 531010, 2177141, 4354282, 10885705, 21771410]

約数ペア:

[(1, 21771410), (2, 10885705), (5, 4354282), (10, 2177141), (41, 531010), (82, 265505), (205, 106202), (410, 53101)]