20698596

素因数分解:

$2^2\times 3^2\times {\mathrm{491}}^1\times {\mathrm{1171}}^1$

素因数の和:1672

約数の個数: 36

約数和(自身を含む): 52472784

約数和(自身を除く): 31774188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 491, 982, 1171, 1473, 1964, 2342, 2946, 3513, 4419, 4684, 5892, 7026, 8838, 10539, 14052, 17676, 21078, 42156, 574961, 1149922, 1724883, 2299844, 3449766, 5174649, 6899532, 10349298, 20698596]

約数ペア:

[(1, 20698596), (2, 10349298), (3, 6899532), (4, 5174649), (6, 3449766), (9, 2299844), (12, 1724883), (18, 1149922), (36, 574961), (491, 42156), (982, 21078), (1171, 17676), (1473, 14052), (1964, 10539), (2342, 8838), (2946, 7026), (3513, 5892), (4419, 4684)]