28896371

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 36188160

約数和(自身を除く): 7291789

約数列:

[1, 7, 31, 37, 59, 61, 217, 259, 413, 427, 1147, 1829, 1891, 2183, 2257, 3599, 8029, 12803, 13237, 15281, 15799, 25193, 67673, 69967, 111569, 133163, 473711, 489769, 780983, 932141, 4128053, 28896371]

約数ペア:

[(1, 28896371), (7, 4128053), (31, 932141), (37, 780983), (59, 489769), (61, 473711), (217, 133163), (259, 111569), (413, 69967), (427, 67673), (1147, 25193), (1829, 15799), (1891, 15281), (2183, 13237), (2257, 12803), (3599, 8029)]