28821681

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1583}}^1$

素因数の和:1630

約数の個数: 36

約数和(自身を含む): 50573952

約数和(自身を除く): 21752271

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 289, 357, 867, 1071, 1583, 2023, 2601, 4749, 6069, 11081, 14247, 18207, 26911, 33243, 80733, 99729, 188377, 242199, 457487, 565131, 1372461, 1695393, 3202409, 4117383, 9607227, 28821681]

約数ペア:

[(1, 28821681), (3, 9607227), (7, 4117383), (9, 3202409), (17, 1695393), (21, 1372461), (51, 565131), (63, 457487), (119, 242199), (153, 188377), (289, 99729), (357, 80733), (867, 33243), (1071, 26911), (1583, 18207), (2023, 14247), (2601, 11081), (4749, 6069)]