9917739

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 16598400

約数和(自身を除く): 6680661

約数列:

[1, 3, 9, 13, 29, 37, 39, 79, 87, 111, 117, 237, 261, 333, 377, 481, 711, 1027, 1073, 1131, 1443, 2291, 2923, 3081, 3219, 3393, 4329, 6873, 8769, 9243, 9657, 13949, 20619, 26307, 29783, 37999, 41847, 84767, 89349, 113997, 125541, 254301, 268047, 341991, 762903, 1101971, 3305913, 9917739]

約数ペア:

[(1, 9917739), (3, 3305913), (9, 1101971), (13, 762903), (29, 341991), (37, 268047), (39, 254301), (79, 125541), (87, 113997), (111, 89349), (117, 84767), (237, 41847), (261, 37999), (333, 29783), (377, 26307), (481, 20619), (711, 13949), (1027, 9657), (1073, 9243), (1131, 8769), (1443, 6873), (2291, 4329), (2923, 3393), (3081, 3219)]