19281941

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 23940000

約数和(自身を除く): 4658059

約数列:

[1, 7, 19, 49, 133, 139, 149, 931, 973, 1043, 2641, 2831, 6811, 7301, 18487, 19817, 20711, 129409, 138719, 144977, 393509, 1014839, 2754563, 19281941]

約数ペア:

[(1, 19281941), (7, 2754563), (19, 1014839), (49, 393509), (133, 144977), (139, 138719), (149, 129409), (931, 20711), (973, 19817), (1043, 18487), (2641, 7301), (2831, 6811)]