18839342

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1171

約数の個数: 16

約数和(自身を含む): 28868400

約数和(自身を除く): 10029058

約数列:

[1, 2, 89, 109, 178, 218, 971, 1942, 9701, 19402, 86419, 105839, 172838, 211678, 9419671, 18839342]

約数ペア:

[(1, 18839342), (2, 9419671), (89, 211678), (109, 172838), (178, 105839), (218, 86419), (971, 19402), (1942, 9701)]