19785454

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 33286176

約数和(自身を除く): 13500722

約数列:

[1, 2, 13, 26, 37, 74, 131, 157, 262, 314, 481, 962, 1703, 2041, 3406, 4082, 4847, 5809, 9694, 11618, 20567, 41134, 63011, 75517, 126022, 151034, 267371, 534742, 760979, 1521958, 9892727, 19785454]

約数ペア:

[(1, 19785454), (2, 9892727), (13, 1521958), (26, 760979), (37, 534742), (74, 267371), (131, 151034), (157, 126022), (262, 75517), (314, 63011), (481, 41134), (962, 20567), (1703, 11618), (2041, 9694), (3406, 5809), (4082, 4847)]