19746419

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 6519181

約数列:

[1, 7, 11, 29, 37, 77, 203, 239, 259, 319, 407, 1073, 1673, 2233, 2629, 2849, 6931, 7511, 8843, 11803, 18403, 48517, 61901, 76241, 82621, 97273, 256447, 533687, 680911, 1795129, 2820917, 19746419]

約数ペア:

[(1, 19746419), (7, 2820917), (11, 1795129), (29, 680911), (37, 533687), (77, 256447), (203, 97273), (239, 82621), (259, 76241), (319, 61901), (407, 48517), (1073, 18403), (1673, 11803), (2233, 8843), (2629, 7511), (2849, 6931)]