28591143

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 46295040

約数和(自身を除く): 17703897

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 547, 917, 1641, 2489, 2751, 3829, 7467, 10393, 11487, 17423, 31179, 52269, 71657, 72751, 214971, 218253, 501599, 1361483, 1504797, 4084449, 9530381, 28591143]

約数ペア:

[(1, 28591143), (3, 9530381), (7, 4084449), (19, 1504797), (21, 1361483), (57, 501599), (131, 218253), (133, 214971), (393, 72751), (399, 71657), (547, 52269), (917, 31179), (1641, 17423), (2489, 11487), (2751, 10393), (3829, 7467)]