11997215

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1450

約数の個数: 16

約数和(自身を含む): 15101856

約数和(自身を除く): 3104641

約数列:

[1, 5, 41, 43, 205, 215, 1361, 1763, 6805, 8815, 55801, 58523, 279005, 292615, 2399443, 11997215]

約数ペア:

[(1, 11997215), (5, 2399443), (41, 292615), (43, 279005), (205, 58523), (215, 55801), (1361, 8815), (1763, 6805)]