16680895

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1171}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 25652736

約数和(自身を除く): 8971841

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1171, 1295, 2035, 2849, 5855, 8197, 12881, 14245, 40985, 43327, 64405, 90167, 216635, 303289, 450835, 476597, 1516445, 2382985, 3336179, 16680895]

約数ペア:

[(1, 16680895), (5, 3336179), (7, 2382985), (11, 1516445), (35, 476597), (37, 450835), (55, 303289), (77, 216635), (185, 90167), (259, 64405), (385, 43327), (407, 40985), (1171, 14245), (1295, 12881), (2035, 8197), (2849, 5855)]