258909861

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{2903}}^1$

素因数の和:3081

約数の個数: 32

約数和(自身を含む): 410370048

約数和(自身を除く): 151460187

約数列:

[1, 3, 7, 21, 31, 93, 137, 217, 411, 651, 959, 2877, 2903, 4247, 8709, 12741, 20321, 29729, 60963, 89187, 89993, 269979, 397711, 629951, 1193133, 1889853, 2783977, 8351931, 12329041, 36987123, 86303287, 258909861]

約数ペア:

[(1, 258909861), (3, 86303287), (7, 36987123), (21, 12329041), (31, 8351931), (93, 2783977), (137, 1889853), (217, 1193133), (411, 629951), (651, 397711), (959, 269979), (2877, 89993), (2903, 89187), (4247, 60963), (8709, 29729), (12741, 20321)]