20889858

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2801}}^1$

素因数の和:2930

約数の個数: 32

約数和(自身を含む): 45997632

約数和(自身を除く): 25107774

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 113, 226, 339, 678, 1243, 2486, 2801, 3729, 5602, 7458, 8403, 16806, 30811, 61622, 92433, 184866, 316513, 633026, 949539, 1899078, 3481643, 6963286, 10444929, 20889858]

約数ペア:

[(1, 20889858), (2, 10444929), (3, 6963286), (6, 3481643), (11, 1899078), (22, 949539), (33, 633026), (66, 316513), (113, 184866), (226, 92433), (339, 61622), (678, 30811), (1243, 16806), (2486, 8403), (2801, 7458), (3729, 5602)]