28908957

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 50118656

約数和(自身を除く): 21209699

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 121, 217, 231, 341, 363, 367, 651, 847, 1023, 1101, 2387, 2541, 2569, 3751, 4037, 7161, 7707, 11253, 11377, 12111, 26257, 28259, 34131, 44407, 78771, 79639, 84777, 125147, 133221, 238917, 310849, 375441, 876029, 932547, 1376617, 2628087, 4129851, 9636319, 28908957]

約数ペア:

[(1, 28908957), (3, 9636319), (7, 4129851), (11, 2628087), (21, 1376617), (31, 932547), (33, 876029), (77, 375441), (93, 310849), (121, 238917), (217, 133221), (231, 125147), (341, 84777), (363, 79639), (367, 78771), (651, 44407), (847, 34131), (1023, 28259), (1101, 26257), (2387, 12111), (2541, 11377), (2569, 11253), (3751, 7707), (4037, 7161)]