21406358

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{1187}}^1$

素因数の和:1387

約数の個数: 16

約数和(自身を含む): 32845824

約数和(自身を除く): 11439466

約数列:

[1, 2, 71, 127, 142, 254, 1187, 2374, 9017, 18034, 84277, 150749, 168554, 301498, 10703179, 21406358]

約数ペア:

[(1, 21406358), (2, 10703179), (71, 301498), (127, 168554), (142, 150749), (254, 84277), (1187, 18034), (2374, 9017)]