28209825

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17911}}^1$

素因数の和:17934

約数の個数: 36

約数和(自身を含む): 57748288

約数和(自身を除く): 29538463

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 17911, 53733, 89555, 125377, 161199, 268665, 376131, 447775, 626885, 805995, 1128393, 1343325, 1880655, 3134425, 4029975, 5641965, 9403275, 28209825]

約数ペア:

[(1, 28209825), (3, 9403275), (5, 5641965), (7, 4029975), (9, 3134425), (15, 1880655), (21, 1343325), (25, 1128393), (35, 805995), (45, 626885), (63, 447775), (75, 376131), (105, 268665), (175, 161199), (225, 125377), (315, 89555), (525, 53733), (1575, 17911)]