20837481

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{11149}}^1$

素因数の和:11248

約数の個数: 16

約数和(自身を含む): 32112000

約数和(自身を除く): 11274519

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 11149, 33447, 78043, 234129, 992261, 2976783, 6945827, 20837481]

約数ペア:

[(1, 20837481), (3, 6945827), (7, 2976783), (21, 992261), (89, 234129), (267, 78043), (623, 33447), (1869, 11149)]