19187589

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9197691

約数列:

[1, 3, 23, 29, 43, 69, 87, 129, 223, 667, 669, 989, 1247, 2001, 2967, 3741, 5129, 6467, 9589, 15387, 19401, 28681, 28767, 86043, 148741, 220547, 278081, 446223, 661641, 834243, 6395863, 19187589]

約数ペア:

[(1, 19187589), (3, 6395863), (23, 834243), (29, 661641), (43, 446223), (69, 278081), (87, 220547), (129, 148741), (223, 86043), (667, 28767), (669, 28681), (989, 19401), (1247, 15387), (2001, 9589), (2967, 6467), (3741, 5129)]