28263711

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 17079009

約数列:

[1, 3, 7, 21, 23, 69, 161, 163, 359, 483, 489, 1077, 1141, 2513, 3423, 3749, 7539, 8257, 11247, 24771, 26243, 57799, 58517, 78729, 173397, 175551, 409619, 1228857, 1345891, 4037673, 9421237, 28263711]

約数ペア:

[(1, 28263711), (3, 9421237), (7, 4037673), (21, 1345891), (23, 1228857), (69, 409619), (161, 175551), (163, 173397), (359, 78729), (483, 58517), (489, 57799), (1077, 26243), (1141, 24771), (2513, 11247), (3423, 8257), (3749, 7539)]