21313724

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{4273}}^1$

素因数の和:4349

約数の個数: 24

約数和(自身を含む): 39491760

約数和(自身を除く): 18178036

約数列:

[1, 2, 4, 29, 43, 58, 86, 116, 172, 1247, 2494, 4273, 4988, 8546, 17092, 123917, 183739, 247834, 367478, 495668, 734956, 5328431, 10656862, 21313724]

約数ペア:

[(1, 21313724), (2, 10656862), (4, 5328431), (29, 734956), (43, 495668), (58, 367478), (86, 247834), (116, 183739), (172, 123917), (1247, 17092), (2494, 8546), (4273, 4988)]