20121880569

素因数分解:

$3^1\times 7^1\times {\mathrm{1523}}^1\times {\mathrm{629143}}^1$

素因数の和:630676

約数の個数: 16

約数和(自身を含む): 30682094592

約数和(自身を除く): 10560214023

約数列:

[1, 3, 7, 21, 1523, 4569, 10661, 31983, 629143, 1887429, 4404001, 13212003, 958184789, 2874554367, 6707293523, 20121880569]

約数ペア:

[(1, 20121880569), (3, 6707293523), (7, 2874554367), (21, 958184789), (1523, 13212003), (4569, 4404001), (10661, 1887429), (31983, 629143)]