28286307

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7877}}^1$

素因数の和:7912

約数の個数: 32

約数和(自身を含む): 50419200

約数和(自身を除く): 22132893

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 7877, 23631, 55139, 70893, 149663, 165417, 212679, 448989, 496251, 1047641, 1346967, 1488753, 3142923, 4040901, 9428769, 28286307]

約数ペア:

[(1, 28286307), (3, 9428769), (7, 4040901), (9, 3142923), (19, 1488753), (21, 1346967), (27, 1047641), (57, 496251), (63, 448989), (133, 212679), (171, 165417), (189, 149663), (399, 70893), (513, 55139), (1197, 23631), (3591, 7877)]