218519077

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2803}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 267232416

約数和(自身を除く): 48713339

約数列:

[1, 7, 37, 43, 49, 259, 301, 1591, 1813, 2107, 2803, 11137, 19621, 77959, 103711, 120529, 137347, 725977, 843703, 4459573, 5081839, 5905921, 31217011, 218519077]

約数ペア:

[(1, 218519077), (7, 31217011), (37, 5905921), (43, 5081839), (49, 4459573), (259, 843703), (301, 725977), (1591, 137347), (1813, 120529), (2107, 103711), (2803, 77959), (11137, 19621)]