20911122

素因数分解:

$2^1\times 3^5\times {\mathrm{17}}^1\times {\mathrm{2531}}^1$

素因数の和:2565

約数の個数: 48

約数和(自身を含む): 49768992

約数和(自身を除く): 28857870

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 243, 306, 459, 486, 918, 1377, 2531, 2754, 4131, 5062, 7593, 8262, 15186, 22779, 43027, 45558, 68337, 86054, 129081, 136674, 205011, 258162, 387243, 410022, 615033, 774486, 1161729, 1230066, 2323458, 3485187, 6970374, 10455561, 20911122]

約数ペア:

[(1, 20911122), (2, 10455561), (3, 6970374), (6, 3485187), (9, 2323458), (17, 1230066), (18, 1161729), (27, 774486), (34, 615033), (51, 410022), (54, 387243), (81, 258162), (102, 205011), (153, 136674), (162, 129081), (243, 86054), (306, 68337), (459, 45558), (486, 43027), (918, 22779), (1377, 15186), (2531, 8262), (2754, 7593), (4131, 5062)]