42378721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 56448000

約数和(自身を除く): 14069279

約数列:

[1, 7, 11, 19, 77, 83, 133, 209, 349, 581, 913, 1463, 1577, 2443, 3839, 6391, 6631, 11039, 17347, 26873, 28967, 46417, 72941, 121429, 202769, 318637, 510587, 550373, 2230459, 3852611, 6054103, 42378721]

約数ペア:

[(1, 42378721), (7, 6054103), (11, 3852611), (19, 2230459), (77, 550373), (83, 510587), (133, 318637), (209, 202769), (349, 121429), (581, 72941), (913, 46417), (1463, 28967), (1577, 26873), (2443, 17347), (3839, 11039), (6391, 6631)]