16868523

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 27504640

約数和(自身を除く): 10636117

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 631, 1273, 1407, 1893, 3819, 4417, 8911, 11989, 13251, 26733, 35967, 42277, 83923, 126831, 251769, 295939, 803263, 887817, 2409789, 5622841, 16868523]

約数ペア:

[(1, 16868523), (3, 5622841), (7, 2409789), (19, 887817), (21, 803263), (57, 295939), (67, 251769), (133, 126831), (201, 83923), (399, 42277), (469, 35967), (631, 26733), (1273, 13251), (1407, 11989), (1893, 8911), (3819, 4417)]