28990941

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 46986240

約数和(自身を除く): 17995299

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 643, 791, 1929, 2147, 2373, 4501, 6441, 12217, 13503, 15029, 36651, 45087, 72659, 85519, 217977, 256557, 508613, 1380521, 1525839, 4141563, 9663647, 28990941]

約数ペア:

[(1, 28990941), (3, 9663647), (7, 4141563), (19, 1525839), (21, 1380521), (57, 508613), (113, 256557), (133, 217977), (339, 85519), (399, 72659), (643, 45087), (791, 36651), (1929, 15029), (2147, 13503), (2373, 12217), (4501, 6441)]