2556393

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 4224000

約数和(自身を除く): 1667607

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 149, 301, 399, 447, 817, 903, 1043, 2451, 2831, 3129, 5719, 6407, 8493, 17157, 19221, 19817, 44849, 59451, 121733, 134547, 365199, 852131, 2556393]

約数ペア:

[(1, 2556393), (3, 852131), (7, 365199), (19, 134547), (21, 121733), (43, 59451), (57, 44849), (129, 19817), (133, 19221), (149, 17157), (301, 8493), (399, 6407), (447, 5719), (817, 3129), (903, 2831), (1043, 2451)]