27789153

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 44912640

約数和(自身を除く): 17123487

約数列:

[1, 3, 7, 19, 21, 57, 133, 257, 271, 399, 771, 813, 1799, 1897, 4883, 5149, 5397, 5691, 14649, 15447, 34181, 36043, 69647, 102543, 108129, 208941, 487529, 1323293, 1462587, 3969879, 9263051, 27789153]

約数ペア:

[(1, 27789153), (3, 9263051), (7, 3969879), (19, 1462587), (21, 1323293), (57, 487529), (133, 208941), (257, 108129), (271, 102543), (399, 69647), (771, 36043), (813, 34181), (1799, 15447), (1897, 14649), (4883, 5691), (5149, 5397)]