21301136

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1199

約数の個数: 40

約数和(自身を含む): 44354304

約数和(自身を除く): 23053168

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1103, 1136, 1207, 2206, 2414, 4412, 4828, 8824, 9656, 17648, 18751, 19312, 37502, 75004, 78313, 150008, 156626, 300016, 313252, 626504, 1253008, 1331321, 2662642, 5325284, 10650568, 21301136]

約数ペア:

[(1, 21301136), (2, 10650568), (4, 5325284), (8, 2662642), (16, 1331321), (17, 1253008), (34, 626504), (68, 313252), (71, 300016), (136, 156626), (142, 150008), (272, 78313), (284, 75004), (568, 37502), (1103, 19312), (1136, 18751), (1207, 17648), (2206, 9656), (2414, 8824), (4412, 4828)]