9863987

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 11860992

約数和(自身を除く): 1997005

約数列:

[1, 7, 23, 161, 197, 311, 1379, 2177, 4531, 7153, 31717, 50071, 61267, 428869, 1409141, 9863987]

約数ペア:

[(1, 9863987), (7, 1409141), (23, 428869), (161, 61267), (197, 50071), (311, 31717), (1379, 7153), (2177, 4531)]