20941173

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1237}}^1$

素因数の和:1279

約数の個数: 40

約数和(自身を含む): 35951520

約数和(自身を除く): 15010347

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 209, 297, 513, 627, 891, 1237, 1539, 1881, 3711, 5643, 11133, 13607, 16929, 23503, 33399, 40821, 70509, 100197, 122463, 211527, 258533, 367389, 634581, 775599, 1102167, 1903743, 2326797, 6980391, 20941173]

約数ペア:

[(1, 20941173), (3, 6980391), (9, 2326797), (11, 1903743), (19, 1102167), (27, 775599), (33, 634581), (57, 367389), (81, 258533), (99, 211527), (171, 122463), (209, 100197), (297, 70509), (513, 40821), (627, 33399), (891, 23503), (1237, 16929), (1539, 13607), (1881, 11133), (3711, 5643)]