28405827

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 46096128

約数和(自身を除く): 17690301

約数列:

[1, 3, 9, 17, 31, 51, 53, 93, 113, 153, 159, 279, 339, 477, 527, 901, 1017, 1581, 1643, 1921, 2703, 3503, 4743, 4929, 5763, 5989, 8109, 10509, 14787, 17289, 17967, 27931, 31527, 53901, 59551, 83793, 101813, 178653, 185659, 251379, 305439, 535959, 556977, 916317, 1670931, 3156203, 9468609, 28405827]

約数ペア:

[(1, 28405827), (3, 9468609), (9, 3156203), (17, 1670931), (31, 916317), (51, 556977), (53, 535959), (93, 305439), (113, 251379), (153, 185659), (159, 178653), (279, 101813), (339, 83793), (477, 59551), (527, 53901), (901, 31527), (1017, 27931), (1581, 17967), (1643, 17289), (1921, 14787), (2703, 10509), (3503, 8109), (4743, 5989), (4929, 5763)]