987682857

素因数分解:

$3^1\times 7^2\times {\mathrm{1009}}^1\times {\mathrm{6659}}^1$

素因数の和:7685

約数の個数: 24

約数和(自身を含む): 1533664800

約数和(自身を除く): 545981943

約数列:

[1, 3, 7, 21, 49, 147, 1009, 3027, 6659, 7063, 19977, 21189, 46613, 49441, 139839, 148323, 326291, 978873, 6718931, 20156793, 47032517, 141097551, 329227619, 987682857]

約数ペア:

[(1, 987682857), (3, 329227619), (7, 141097551), (21, 47032517), (49, 20156793), (147, 6718931), (1009, 978873), (3027, 326291), (6659, 148323), (7063, 139839), (19977, 49441), (21189, 46613)]