28920843

素因数分解:

$3^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{983}}^1$

素因数の和:1463

約数の個数: 24

約数和(自身を含む): 47893248

約数和(自身を除く): 18972405

約数列:

[1, 3, 7, 9, 21, 63, 467, 983, 1401, 2949, 3269, 4203, 6881, 8847, 9807, 20643, 29421, 61929, 459061, 1377183, 3213427, 4131549, 9640281, 28920843]

約数ペア:

[(1, 28920843), (3, 9640281), (7, 4131549), (9, 3213427), (21, 1377183), (63, 459061), (467, 61929), (983, 29421), (1401, 20643), (2949, 9807), (3269, 8847), (4203, 6881)]