21997796187

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1\times {\mathrm{16603}}^1$

素因数の和:17019

約数の個数: 32

約数和(自身を含む): 31532191488

約数和(自身を除く): 9534395301

約数列:

[1, 3, 17, 51, 83, 249, 313, 939, 1411, 4233, 5321, 15963, 16603, 25979, 49809, 77937, 282251, 441643, 846753, 1324929, 1378049, 4134147, 5196739, 15590217, 23426833, 70280499, 88344563, 265033689, 431329337, 1293988011, 7332598729, 21997796187]

約数ペア:

[(1, 21997796187), (3, 7332598729), (17, 1293988011), (51, 431329337), (83, 265033689), (249, 88344563), (313, 70280499), (939, 23426833), (1411, 15590217), (4233, 5196739), (5321, 4134147), (15963, 1378049), (16603, 1324929), (25979, 846753), (49809, 441643), (77937, 282251)]