19935267

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 30862080

約数和(自身を除く): 10926813

約数列:

[1, 3, 11, 29, 33, 37, 87, 111, 319, 407, 563, 957, 1073, 1221, 1689, 3219, 6193, 11803, 16327, 18579, 20831, 35409, 48981, 62493, 179597, 229141, 538791, 604099, 687423, 1812297, 6645089, 19935267]

約数ペア:

[(1, 19935267), (3, 6645089), (11, 1812297), (29, 687423), (33, 604099), (37, 538791), (87, 229141), (111, 179597), (319, 62493), (407, 48981), (563, 35409), (957, 20831), (1073, 18579), (1221, 16327), (1689, 11803), (3219, 6193)]