21091764

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{103391}}^1$

素因数の和:103415

約数の個数: 24

約数和(自身を含む): 52109568

約数和(自身を除く): 31017804

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 103391, 206782, 310173, 413564, 620346, 1240692, 1757647, 3515294, 5272941, 7030588, 10545882, 21091764]

約数ペア:

[(1, 21091764), (2, 10545882), (3, 7030588), (4, 5272941), (6, 3515294), (12, 1757647), (17, 1240692), (34, 620346), (51, 413564), (68, 310173), (102, 206782), (204, 103391)]