21675405

素因数分解:

$3^1\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1303}}^1$

素因数の和:2420

約数の個数: 16

約数和(自身を含む): 34738560

約数和(自身を除く): 13063155

約数列:

[1, 3, 5, 15, 1109, 1303, 3327, 3909, 5545, 6515, 16635, 19545, 1445027, 4335081, 7225135, 21675405]

約数ペア:

[(1, 21675405), (3, 7225135), (5, 4335081), (15, 1445027), (1109, 19545), (1303, 16635), (3327, 6515), (3909, 5545)]