21058461

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:443

約数の個数: 40

約数和(自身を含む): 34212024

約数和(自身を除く): 13153563

約数列:

[1, 3, 9, 17, 27, 41, 51, 81, 123, 153, 369, 373, 459, 697, 1107, 1119, 1377, 2091, 3321, 3357, 6273, 6341, 10071, 15293, 18819, 19023, 30213, 45879, 56457, 57069, 137637, 171207, 259981, 412911, 513621, 779943, 1238733, 2339829, 7019487, 21058461]

約数ペア:

[(1, 21058461), (3, 7019487), (9, 2339829), (17, 1238733), (27, 779943), (41, 513621), (51, 412911), (81, 259981), (123, 171207), (153, 137637), (369, 57069), (373, 56457), (459, 45879), (697, 30213), (1107, 19023), (1119, 18819), (1377, 15293), (2091, 10071), (3321, 6341), (3357, 6273)]