20919798

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61169}}^1$

素因数の和:61196

約数の個数: 24

約数和(自身を含む): 47712600

約数和(自身を除く): 26792802

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 61169, 122338, 183507, 367014, 550521, 1101042, 1162211, 2324422, 3486633, 6973266, 10459899, 20919798]

約数ペア:

[(1, 20919798), (2, 10459899), (3, 6973266), (6, 3486633), (9, 2324422), (18, 1162211), (19, 1101042), (38, 550521), (57, 367014), (114, 183507), (171, 122338), (342, 61169)]