21998409

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{2311}}^1$

素因数の和:2500

約数の個数: 16

約数和(自身を含む): 31073280

約数和(自身を除く): 9074871

約数列:

[1, 3, 19, 57, 167, 501, 2311, 3173, 6933, 9519, 43909, 131727, 385937, 1157811, 7332803, 21998409]

約数ペア:

[(1, 21998409), (3, 7332803), (19, 1157811), (57, 385937), (167, 131727), (501, 43909), (2311, 9519), (3173, 6933)]