21497118

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{67601}}^1$

素因数の和:67659

約数の個数: 16

約数和(自身を含む): 43806096

約数和(自身を除く): 22308978

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 67601, 135202, 202803, 405606, 3582853, 7165706, 10748559, 21497118]

約数ペア:

[(1, 21497118), (2, 10748559), (3, 7165706), (6, 3582853), (53, 405606), (106, 202803), (159, 135202), (318, 67601)]