74777787

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 131040000

約数和(自身を除く): 56262213

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 179, 349, 399, 537, 1047, 1197, 1253, 1611, 2443, 3141, 3401, 3759, 6631, 7329, 10203, 11277, 19893, 21987, 23807, 30609, 46417, 59679, 62471, 71421, 139251, 187413, 214263, 417753, 437297, 562239, 1186949, 1311891, 3560847, 3935673, 8308643, 10682541, 24925929, 74777787]

約数ペア:

[(1, 74777787), (3, 24925929), (7, 10682541), (9, 8308643), (19, 3935673), (21, 3560847), (57, 1311891), (63, 1186949), (133, 562239), (171, 437297), (179, 417753), (349, 214263), (399, 187413), (537, 139251), (1047, 71421), (1197, 62471), (1253, 59679), (1611, 46417), (2443, 30609), (3141, 23807), (3401, 21987), (3759, 19893), (6631, 11277), (7329, 10203)]