21835089

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 40

約数和(自身を含む): 35100648

約数和(自身を除く): 13265559

約数列:

[1, 3, 9, 17, 27, 51, 81, 101, 153, 157, 303, 459, 471, 909, 1377, 1413, 1717, 2669, 2727, 4239, 5151, 8007, 8181, 12717, 15453, 15857, 24021, 46359, 47571, 72063, 139077, 142713, 216189, 269569, 428139, 808707, 1284417, 2426121, 7278363, 21835089]

約数ペア:

[(1, 21835089), (3, 7278363), (9, 2426121), (17, 1284417), (27, 808707), (51, 428139), (81, 269569), (101, 216189), (153, 142713), (157, 139077), (303, 72063), (459, 47571), (471, 46359), (909, 24021), (1377, 15857), (1413, 15453), (1717, 12717), (2669, 8181), (2727, 8007), (4239, 5151)]