16509423

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 28235520

約数和(自身を除く): 11726097

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 257, 399, 437, 483, 771, 931, 1127, 1311, 1799, 2793, 3059, 3381, 4883, 5397, 5911, 9177, 12593, 14649, 17733, 21413, 34181, 37779, 41377, 64239, 102543, 112309, 124131, 239267, 289639, 336927, 717801, 786163, 868917, 2358489, 5503141, 16509423]

約数ペア:

[(1, 16509423), (3, 5503141), (7, 2358489), (19, 868917), (21, 786163), (23, 717801), (49, 336927), (57, 289639), (69, 239267), (133, 124131), (147, 112309), (161, 102543), (257, 64239), (399, 41377), (437, 37779), (483, 34181), (771, 21413), (931, 17733), (1127, 14649), (1311, 12593), (1799, 9177), (2793, 5911), (3059, 5397), (3381, 4883)]