21729213

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12911}}^1$

素因数の和:12945

約数の個数: 24

約数和(自身を含む): 36256896

約数和(自身を除く): 14527683

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12911, 38733, 116199, 142021, 219487, 426063, 658461, 1278189, 1975383, 2414357, 7243071, 21729213]

約数ペア:

[(1, 21729213), (3, 7243071), (9, 2414357), (11, 1975383), (17, 1278189), (33, 658461), (51, 426063), (99, 219487), (153, 142021), (187, 116199), (561, 38733), (1683, 12911)]