21149810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{192271}}^1$

素因数の和:192289

約数の個数: 16

約数和(自身を含む): 41530752

約数和(自身を除く): 20380942

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 192271, 384542, 961355, 1922710, 2114981, 4229962, 10574905, 21149810]

約数ペア:

[(1, 21149810), (2, 10574905), (5, 4229962), (10, 2114981), (11, 1922710), (22, 961355), (55, 384542), (110, 192271)]