16421517

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1662

約数の個数: 36

約数和(自身を含む): 28810080

約数和(自身を除く): 12388563

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 1619, 3381, 4857, 10143, 11333, 14571, 33999, 37237, 79331, 101997, 111711, 237993, 260659, 335133, 713979, 781977, 1824613, 2345931, 5473839, 16421517]

約数ペア:

[(1, 16421517), (3, 5473839), (7, 2345931), (9, 1824613), (21, 781977), (23, 713979), (49, 335133), (63, 260659), (69, 237993), (147, 111711), (161, 101997), (207, 79331), (441, 37237), (483, 33999), (1127, 14571), (1449, 11333), (1619, 10143), (3381, 4857)]