16187913

素因数分解:

$3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 26851968

約数和(自身を除く): 10664055

約数列:

[1, 3, 7, 9, 21, 63, 263, 789, 977, 1841, 2367, 2931, 5523, 6839, 8793, 16569, 20517, 61551, 256951, 770853, 1798657, 2312559, 5395971, 16187913]

約数ペア:

[(1, 16187913), (3, 5395971), (7, 2312559), (9, 1798657), (21, 770853), (63, 256951), (263, 61551), (789, 20517), (977, 16569), (1841, 8793), (2367, 6839), (2931, 5523)]