28377909

素因数分解:

$3^2\times 7^2\times {\mathrm{229}}^1\times {\mathrm{281}}^1$

素因数の和:530

約数の個数: 36

約数和(自身を含む): 48061260

約数和(自身を除く): 19683351

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 229, 281, 441, 687, 843, 1603, 1967, 2061, 2529, 4809, 5901, 11221, 13769, 14427, 17703, 33663, 41307, 64349, 100989, 123921, 193047, 450443, 579141, 1351329, 3153101, 4053987, 9459303, 28377909]

約数ペア:

[(1, 28377909), (3, 9459303), (7, 4053987), (9, 3153101), (21, 1351329), (49, 579141), (63, 450443), (147, 193047), (229, 123921), (281, 100989), (441, 64349), (687, 41307), (843, 33663), (1603, 17703), (1967, 14427), (2061, 13769), (2529, 11221), (4809, 5901)]