20481643

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1301}}^1$

素因数の和:1494

約数の個数: 16

約数和(自身を含む): 25373376

約数和(自身を除く): 4891733

約数列:

[1, 7, 13, 91, 173, 1211, 1301, 2249, 9107, 15743, 16913, 118391, 225073, 1575511, 2925949, 20481643]

約数ペア:

[(1, 20481643), (7, 2925949), (13, 1575511), (91, 225073), (173, 118391), (1211, 16913), (1301, 15743), (2249, 9107)]