28158207

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1543}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 47431680

約数和(自身を除く): 19273473

約数列:

[1, 3, 7, 11, 21, 33, 77, 79, 231, 237, 553, 869, 1543, 1659, 2607, 4629, 6083, 10801, 16973, 18249, 32403, 50919, 118811, 121897, 356433, 365691, 853279, 1340867, 2559837, 4022601, 9386069, 28158207]

約数ペア:

[(1, 28158207), (3, 9386069), (7, 4022601), (11, 2559837), (21, 1340867), (33, 853279), (77, 365691), (79, 356433), (231, 121897), (237, 118811), (553, 50919), (869, 32403), (1543, 18249), (1659, 16973), (2607, 10801), (4629, 6083)]