3139731

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 5674240

約数和(自身を除く): 2534509

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 61, 63, 129, 133, 171, 183, 301, 387, 399, 427, 549, 817, 903, 1159, 1197, 1281, 2451, 2623, 2709, 3477, 3843, 5719, 7353, 7869, 8113, 10431, 17157, 18361, 23607, 24339, 49837, 51471, 55083, 73017, 149511, 165249, 348859, 448533, 1046577, 3139731]

約数ペア:

[(1, 3139731), (3, 1046577), (7, 448533), (9, 348859), (19, 165249), (21, 149511), (43, 73017), (57, 55083), (61, 51471), (63, 49837), (129, 24339), (133, 23607), (171, 18361), (183, 17157), (301, 10431), (387, 8113), (399, 7869), (427, 7353), (549, 5719), (817, 3843), (903, 3477), (1159, 2709), (1197, 2623), (1281, 2451)]