28720353

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 42762240

約数和(自身を除く): 14041887

約数列:

[1, 3, 23, 29, 31, 69, 87, 93, 463, 667, 713, 899, 1389, 2001, 2139, 2697, 10649, 13427, 14353, 20677, 31947, 40281, 43059, 62031, 308821, 330119, 416237, 926463, 990357, 1248711, 9573451, 28720353]

約数ペア:

[(1, 28720353), (3, 9573451), (23, 1248711), (29, 990357), (31, 926463), (69, 416237), (87, 330119), (93, 308821), (463, 62031), (667, 43059), (713, 40281), (899, 31947), (1389, 20677), (2001, 14353), (2139, 13427), (2697, 10649)]