21000627

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:281

約数の個数: 40

約数和(自身を含む): 33767712

約数和(自身を除く): 12767085

約数列:

[1, 3, 9, 17, 27, 51, 81, 101, 151, 153, 303, 453, 459, 909, 1359, 1377, 1717, 2567, 2727, 4077, 5151, 7701, 8181, 12231, 15251, 15453, 23103, 45753, 46359, 69309, 137259, 139077, 207927, 259267, 411777, 777801, 1235331, 2333403, 7000209, 21000627]

約数ペア:

[(1, 21000627), (3, 7000209), (9, 2333403), (17, 1235331), (27, 777801), (51, 411777), (81, 259267), (101, 207927), (151, 139077), (153, 137259), (303, 69309), (453, 46359), (459, 45753), (909, 23103), (1359, 15453), (1377, 15251), (1717, 12231), (2567, 8181), (2727, 7701), (4077, 5151)]