51187857

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 82114560

約数和(自身を除く): 30926703

約数列:

[1, 3, 7, 21, 23, 69, 131, 161, 393, 483, 809, 917, 2427, 2751, 3013, 5663, 9039, 16989, 18607, 21091, 55821, 63273, 105979, 130249, 317937, 390747, 741853, 2225559, 2437517, 7312551, 17062619, 51187857]

約数ペア:

[(1, 51187857), (3, 17062619), (7, 7312551), (21, 2437517), (23, 2225559), (69, 741853), (131, 390747), (161, 317937), (393, 130249), (483, 105979), (809, 63273), (917, 55821), (2427, 21091), (2751, 18607), (3013, 16989), (5663, 9039)]