28781618

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{5449}}^1$

素因数の和:5609

約数の個数: 16

約数和(自身を含む): 45780000

約数和(自身を除く): 16998382

約数列:

[1, 2, 19, 38, 139, 278, 2641, 5282, 5449, 10898, 103531, 207062, 757411, 1514822, 14390809, 28781618]

約数ペア:

[(1, 28781618), (2, 14390809), (19, 1514822), (38, 757411), (139, 207062), (278, 103531), (2641, 10898), (5282, 5449)]