21000000565

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{1669}}^1\times {\mathrm{30319}}^1$

素因数の和:32076

約数の個数: 16

約数和(自身を含む): 25519737600

約数和(自身を除く): 4519737035

約数列:

[1, 5, 83, 415, 1669, 8345, 30319, 138527, 151595, 692635, 2516477, 12582385, 50602411, 253012055, 4200000113, 21000000565]

約数ペア:

[(1, 21000000565), (5, 4200000113), (83, 253012055), (415, 50602411), (1669, 12582385), (8345, 2516477), (30319, 692635), (138527, 151595)]