28331289

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1723}}^1$

素因数の和:1771

約数の個数: 40

約数和(自身を含む): 50064960

約数和(自身を除く): 21733671

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1723, 1827, 2349, 5169, 5481, 12061, 15507, 16443, 36183, 46521, 49967, 108549, 139563, 149901, 325647, 349769, 449703, 976941, 1049307, 1349109, 3147921, 4047327, 9443763, 28331289]

約数ペア:

[(1, 28331289), (3, 9443763), (7, 4047327), (9, 3147921), (21, 1349109), (27, 1049307), (29, 976941), (63, 449703), (81, 349769), (87, 325647), (189, 149901), (203, 139563), (261, 108549), (567, 49967), (609, 46521), (783, 36183), (1723, 16443), (1827, 15507), (2349, 12061), (5169, 5481)]