28756329

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 46663680

約数和(自身を除く): 17907351

約数列:

[1, 3, 7, 19, 21, 57, 97, 133, 291, 399, 679, 743, 1843, 2037, 2229, 5201, 5529, 12901, 14117, 15603, 38703, 42351, 72071, 98819, 216213, 296457, 504497, 1369349, 1513491, 4108047, 9585443, 28756329]

約数ペア:

[(1, 28756329), (3, 9585443), (7, 4108047), (19, 1513491), (21, 1369349), (57, 504497), (97, 296457), (133, 216213), (291, 98819), (399, 72071), (679, 42351), (743, 38703), (1843, 15603), (2037, 14117), (2229, 12901), (5201, 5529)]