19880641

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 22583808

約数和(自身を除く): 2703167

約数列:

[1, 11, 31, 173, 337, 341, 1903, 3707, 5363, 10447, 58301, 58993, 114917, 641311, 1807331, 19880641]

約数ペア:

[(1, 19880641), (11, 1807331), (31, 641311), (173, 114917), (337, 58993), (341, 58301), (1903, 10447), (3707, 5363)]