21519641

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2467}}^1$

素因数の和:2552

約数の個数: 16

約数和(自身を含む): 25706688

約数和(自身を除く): 4187047

約数列:

[1, 11, 13, 61, 143, 671, 793, 2467, 8723, 27137, 32071, 150487, 352781, 1655357, 1956331, 21519641]

約数ペア:

[(1, 21519641), (11, 1956331), (13, 1655357), (61, 352781), (143, 150487), (671, 32071), (793, 27137), (2467, 8723)]