721016009

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1427}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 904780800

約数和(自身を除く): 183764791

約数列:

[1, 7, 19, 29, 131, 133, 203, 551, 917, 1427, 2489, 3799, 3857, 9989, 17423, 26593, 27113, 41383, 72181, 186937, 189791, 289681, 505267, 786277, 1308559, 3551803, 5421173, 5503939, 24862621, 37948211, 103002287, 721016009]

約数ペア:

[(1, 721016009), (7, 103002287), (19, 37948211), (29, 24862621), (131, 5503939), (133, 5421173), (203, 3551803), (551, 1308559), (917, 786277), (1427, 505267), (2489, 289681), (3799, 189791), (3857, 186937), (9989, 72181), (17423, 41383), (26593, 27113)]