21155354

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41809}}^1$

素因数の和:41845

約数の個数: 16

約数和(自身を含む): 36123840

約数和(自身を除く): 14968486

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41809, 83618, 459899, 919798, 961607, 1923214, 10577677, 21155354]

約数ペア:

[(1, 21155354), (2, 10577677), (11, 1923214), (22, 961607), (23, 919798), (46, 459899), (253, 83618), (506, 41809)]