20673993

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 29170368

約数和(自身を除く): 8496375

約数列:

[1, 3, 31, 71, 93, 101, 213, 303, 961, 2201, 2883, 3131, 6603, 7171, 9393, 21513, 68231, 97061, 204693, 222301, 291183, 666903, 6891331, 20673993]

約数ペア:

[(1, 20673993), (3, 6891331), (31, 666903), (71, 291183), (93, 222301), (101, 204693), (213, 97061), (303, 68231), (961, 21513), (2201, 9393), (2883, 7171), (3131, 6603)]