21656396

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1117}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 39255216

約数和(自身を除く): 17598820

約数列:

[1, 2, 4, 37, 74, 131, 148, 262, 524, 1117, 2234, 4468, 4847, 9694, 19388, 41329, 82658, 146327, 165316, 292654, 585308, 5414099, 10828198, 21656396]

約数ペア:

[(1, 21656396), (2, 10828198), (4, 5414099), (37, 585308), (74, 292654), (131, 165316), (148, 146327), (262, 82658), (524, 41329), (1117, 19388), (2234, 9694), (4468, 4847)]