19709415

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1373}}^1$

素因数の和:1424

約数の個数: 48

約数和(自身を含む): 38581920

約数和(自身を除く): 18872505

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1373, 1595, 2871, 4119, 4785, 6865, 12357, 14355, 15103, 20595, 39817, 45309, 61785, 75515, 119451, 135927, 199085, 226545, 358353, 437987, 597255, 679635, 1313961, 1791765, 2189935, 3941883, 6569805, 19709415]

約数ペア:

[(1, 19709415), (3, 6569805), (5, 3941883), (9, 2189935), (11, 1791765), (15, 1313961), (29, 679635), (33, 597255), (45, 437987), (55, 358353), (87, 226545), (99, 199085), (145, 135927), (165, 119451), (261, 75515), (319, 61785), (435, 45309), (495, 39817), (957, 20595), (1305, 15103), (1373, 14355), (1595, 12357), (2871, 6865), (4119, 4785)]