28125981

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{353}}^1$

素因数の和:602

約数の個数: 32

約数和(自身を含む): 45198720

約数和(自身を除く): 17072739

約数列:

[1, 3, 9, 13, 27, 39, 117, 227, 351, 353, 681, 1059, 2043, 2951, 3177, 4589, 6129, 8853, 9531, 13767, 26559, 41301, 79677, 80131, 123903, 240393, 721179, 1041703, 2163537, 3125109, 9375327, 28125981]

約数ペア:

[(1, 28125981), (3, 9375327), (9, 3125109), (13, 2163537), (27, 1041703), (39, 721179), (117, 240393), (227, 123903), (351, 80131), (353, 79677), (681, 41301), (1059, 26559), (2043, 13767), (2951, 9531), (3177, 8853), (4589, 6129)]