20362509

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:263

約数の個数: 40

約数和(自身を含む): 32582880

約数和(自身を除く): 12220371

約数列:

[1, 3, 9, 19, 27, 57, 81, 101, 131, 171, 303, 393, 513, 909, 1179, 1539, 1919, 2489, 2727, 3537, 5757, 7467, 8181, 10611, 13231, 17271, 22401, 39693, 51813, 67203, 119079, 155439, 201609, 251389, 357237, 754167, 1071711, 2262501, 6787503, 20362509]

約数ペア:

[(1, 20362509), (3, 6787503), (9, 2262501), (19, 1071711), (27, 754167), (57, 357237), (81, 251389), (101, 201609), (131, 155439), (171, 119079), (303, 67203), (393, 51813), (513, 39693), (909, 22401), (1179, 17271), (1539, 13231), (1919, 10611), (2489, 8181), (2727, 7467), (3537, 5757)]