20404923

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12619}}^1$

素因数の和:12647

約数の個数: 24

約数和(自身を含む): 34528320

約数和(自身を除く): 14123397

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12619, 37857, 88333, 138809, 264999, 416427, 618331, 971663, 1854993, 2914989, 6801641, 20404923]

約数ペア:

[(1, 20404923), (3, 6801641), (7, 2914989), (11, 1854993), (21, 971663), (33, 618331), (49, 416427), (77, 264999), (147, 138809), (231, 88333), (539, 37857), (1617, 12619)]