31019295

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1913}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 52918272

約数和(自身を除く): 21898977

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 1913, 3243, 5405, 5739, 9565, 16215, 28695, 43999, 89911, 131997, 219995, 269733, 449555, 659985, 1348665, 2067953, 6203859, 10339765, 31019295]

約数ペア:

[(1, 31019295), (3, 10339765), (5, 6203859), (15, 2067953), (23, 1348665), (47, 659985), (69, 449555), (115, 269733), (141, 219995), (235, 131997), (345, 89911), (705, 43999), (1081, 28695), (1913, 16215), (3243, 9565), (5405, 5739)]