20127506721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1\times {\mathrm{68261}}^1$

素因数の和:69029

約数の個数: 32

約数和(自身を含む): 32328883200

約数和(自身を除く): 12201376479

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 739, 2217, 5173, 14041, 15519, 42123, 68261, 98287, 204783, 294861, 477827, 1296959, 1433481, 3890877, 9078713, 27236139, 50444879, 151334637, 353114153, 958452701, 1059342459, 2875358103, 6709168907, 20127506721]

約数ペア:

[(1, 20127506721), (3, 6709168907), (7, 2875358103), (19, 1059342459), (21, 958452701), (57, 353114153), (133, 151334637), (399, 50444879), (739, 27236139), (2217, 9078713), (5173, 3890877), (14041, 1433481), (15519, 1296959), (42123, 477827), (68261, 294861), (98287, 204783)]