20508738621

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26394773}}^1$

素因数の和:26394820

約数の個数: 16

約数和(自身を含む): 32096045184

約数和(自身を除く): 11587306563

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26394773, 79184319, 184763411, 554290233, 976606601, 2929819803, 6836246207, 20508738621]

約数ペア:

[(1, 20508738621), (3, 6836246207), (7, 2929819803), (21, 976606601), (37, 554290233), (111, 184763411), (259, 79184319), (777, 26394773)]