18858974

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{8221}}^1$

素因数の和:8291

約数の個数: 16

約数和(自身を含む): 29993856

約数和(自身を除く): 11134882

約数列:

[1, 2, 31, 37, 62, 74, 1147, 2294, 8221, 16442, 254851, 304177, 509702, 608354, 9429487, 18858974]

約数ペア:

[(1, 18858974), (2, 9429487), (31, 608354), (37, 509702), (62, 304177), (74, 254851), (1147, 16442), (2294, 8221)]