16816653

素因数分解:

$3^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:268

約数の個数: 60

約数和(自身を含む): 30898560

約数和(自身を除く): 14081907

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 147, 171, 189, 223, 399, 441, 513, 567, 669, 931, 1197, 1323, 1539, 1561, 2007, 2793, 3591, 3969, 4237, 4683, 6021, 8379, 10773, 10927, 12711, 14049, 18063, 25137, 29659, 32781, 38133, 42147, 75411, 88977, 98343, 114399, 126441, 207613, 266931, 295029, 343197, 622839, 800793, 885087, 1868517, 2402379, 5605551, 16816653]

約数ペア:

[(1, 16816653), (3, 5605551), (7, 2402379), (9, 1868517), (19, 885087), (21, 800793), (27, 622839), (49, 343197), (57, 295029), (63, 266931), (81, 207613), (133, 126441), (147, 114399), (171, 98343), (189, 88977), (223, 75411), (399, 42147), (441, 38133), (513, 32781), (567, 29659), (669, 25137), (931, 18063), (1197, 14049), (1323, 12711), (1539, 10927), (1561, 10773), (2007, 8379), (2793, 6021), (3591, 4683), (3969, 4237)]